Question

Look at the net of the polyhedron shown below.
The number of edges of the polyhedron is ________.

Answer 1

do u have a answer book for it

Answer 2

no

Answer 3

i am not sure may b 16 but i am not sure

Answer 4

ok well thank-you for trying to help me i appreciate it!

Answer 5

23+14=37 I believe

Answer 6

ok cool how did you figure that out?

Answer 7

well basically edges are the sides or lines right? so a square has four edges?

Answer 8

http://www.mathsisfun.com/geometry/vertices-faces-edges.html

Answer 9

wait, is the very left square complete?

Answer 10

has four edges?

Answer 11

yes

Answer 12

just basically count the edges for all the squares and the octagons but remember you don't recount the overlapping ones.

Answer 13

ooh ok yeahh the overlapping ones forgot not to count those ok thank-you!! =)

Answer 14

no problem :)

Answer 15

so it should be 25+14=39 since I counted wrong before

Answer 16

I hate questions like these wen u have to physically count lol, it's very easy to make mistakes.

Answer 17

lol oh well thank-you 'master' ;p =)

Answer 18

haha I was joking and don't call me that ever again lol

Answer 19

lol XD

Answer 20

A city park has an architectural pillar in the shape of a triangular pyramid. The shape of the base of the pillar is an equilateral triangle. The dimensions of the shape of the pillar are as shown below.

The park plans to repaint the lateral area of the pillar. The area of the pillar that will be repainted is _______________ ft2.

Answer 21

oh wait my bad lol it's only three faces, I'm so stupid, wait a sec.

Answer 22

Lateral area= total surface area excluding the base
Since there are four sides to be painted we can find the surface area of one times by four and that will simply be the answer
A of triangle = ½ bh
= 3 x( ½ x 3 x 8)
= 36 ft ^2

Answer 23

I also learnt something new btw, I never knew what was lateral area before lol, I just merely searched it before.

Answer 24

=) ok so its 36 then? and lol verry nice you seem very smart to =)

Answer 25

nope, not at all, I am in fact pretty dumb lol. yep it's 36.

Answer 26

uuum anyone helping me this much with math is in fact not dumb lol =p =)

Answer 27

anyhow, I am actually lol, next question?

Answer 28

Two similar solids are shown below.
What is the volume of the larger solid?
Answer

1000 ft3

1750 ft3

3500 ft3

7000 ft3

Answer 29

just 1000ft3 I believe, do u know the volume formula?

Answer 30

V = l x w x h
= (l x w) ---- this is the base
= 10 x 10 x 10
= 1000 ft3

Answer 31

yeahh i could have probably answered that oops i just went to the next question =p

Answer 32

no problem :)

Answer 33

Two similar cone-shaped mixers are shown below.
What is the radius of the bigger cone?
Answer

12 ft

18 ft

20 ft

50 ft

Answer 34

\[\frac{x}{12}= \frac{30}{20}\]
so x = 30/20 x 12
x = 18

Answer 35

if your exam is on math or somthin your gonna do great lol thanks again

Answer 36

congruency i believe is what it is called.

Answer 37

haha depends

Answer 38

Gilbert drew the incorrect graph shown below to represent the circle (x +2)2 + (y −1)2 = 9
Which statement explains why Gilbert’s graph is incorrect?
Answer

The radius of the circle should be 2 instead of 9.

The radius of the circle should be 3 instead of 9.

The center of the circle should be (2, -1) instead of (-2, 1).

The center of the circle should be (-1, 9) instead of (-2, 1).

Answer 39

sorry, i am applying cream stuff on my face lol, wait a sec.

Answer 40

lol it's k

Answer 41

(x +2)^2 + (y −1)^2 = 9
ok from here we can tell that the centre point of the circle is (-2,1) you can think of it as taking the opposite signs of inside the brackets.
The radius is also square root of 9 which is 3.
So then know we know radius=3 and centre point (-2,1) and the centre point referring to the graphs seems to correct so it leaves us to select the second answer.

Answer 42

just ask me if you don't get anything

Answer 43

ok will do =)

Answer 44

The figure below shows two white quarter circles inside a rectangle.
The area of the shaded portion is approximately _____square feet. Round the solution to the nearest whole number.

Answer 45

So first of all, the area of the whole square is just 60 ft x 30 ft = 1800 ft^2
Then we find the area of the two quarters of circle but to make it easier it is in fact half of a circle because ¼ + ¼ is a half, so we can use the area of the circle and divide by 2.
Area = π × r2 /2
= π x 30^2/2
= 1413.72 ft^2

Now all that is left is to use the area of square minus the area of the circle
1800-1413.72 = 386. 283306
= 386 ft^2

Answer 46

It takes quite long to write out the explanations and solutions, I wish I could explain it to you in person, it would be so much easier but that's not possible.

Answer 47

=) you dont have to go so into detail if you don't want to and yes in person would be nice i agree

Answer 48

The figure below shows a circular prop with two triangles labeled ABC and AOC made on it. The center of the prop is labeled O.
What is the area of the cloth required to make the circular prop?
Answer

14.14 ft2

28.29 ft2

32.48 ft2

46.58 ft2

Answer 49

wait, which is the prop? lol

Answer 50

the whole circle I'm assuming?

Answer 51

yeahh aha

Answer 52

oh man I hate especially this question lol, let me see if I can get an answer.

Answer 53

ok if not its kk aha

Answer 54

yep, maybe skip this one I'm afraid I might take too long on it lol

Answer 55

but I do know like around 40% of the steps to get to the answer.

Answer 56

lol it's kk hold on

Answer 57

just highlight that one and ask someone later?

Answer 58

An aquarium sells cubic fish tanks of different sizes. The length of the small-size fish tank is 2 feet. The dimensions of the jumbo-size fish tank are double the dimensions of the small-size fish tank. Which expression can be used to find the ratio of the volume of the small size-fish tank to the volume of the jumbo-size fish tank?
Answer

The whole square of 2 by 4.

The whole cube of 4 by 2.

The whole cube of 2 by 4.

The whole square of 4 by 2.

Answer 59

yes i will do that

Answer 60

Small size fish tank jumbo size fish tank(double the small one)
Length = 2 feet Length= 4 feet
V= 1x2x3 V =2x4x6
V = 6 V = 48

k so now I'm trying to figure out which one is the answer.

Answer 61

haha ok =)

Answer 62

lol, I'm confused

Answer 63

haha want to move on?

Answer 64

kk

Answer 65

I will see if I can work it out later.

Answer 66

Alex designed the model of a cylindrical water tank to be installed in a park. The model has a radius of 6 cm and a height of 13 cm. The dimensions of the actual water tanks that will be installed in the park are 6 times larger than the model. The total surface area of the actual water tanks, rounded to the nearest whole number, is _________ cm2.

Use 22 over 7 for pi. Do not type a comma in your response. For example, an answer of 1,000 would be given as 1000.
Answer

Answer 67

sorry, brushing my teeth lol. maybe u can go do something else quickly first?

Answer 68

lol np and yeahh

Answer 69

bak

Answer 70

mmkks

Answer 71

original dimensions are radius=6 and height =13
after they are multiplied by 6 they become r=36 and h=78
So r=36cm h=78cm
TSA of Cylinder = 2πr(r+h)
= 2 x π x 36 (36+78)
= 25786.1925

Answer 72

alright cool only a few more sorry if you wanna study you can!!! aha

Answer 73

Read the statements shown below.

If a closed figure has three line segments joined end to end, it is a triangle.
If all the three angles of a triangle are congruent, it is an equilateral triangle.
Morgan constructed a triangle with all three sides congruent in the geometry class.

Based on the given statements, which is a valid argument?
Answer

It can be concluded that Morgan drew a rectangle.

It cannot be concluded that Morgan drew an equilateral triangle.

It cannot be concluded that Morgan drew a closed figure having three line segments joined end to end.

It can be concluded that Morgan drew a closed figure having three congruent line segments joined end to end.

Answer 74

the last one, based on the text given if you read carefully it says it all.

Answer 75

Look at the figure.
What is the length, in units, of segment CD?
Answer

6

7

8.5

9.8