Question

Find the Surface Area of the Prism

Answer 1

yay more EZ questions :D

Answer 2

find the area of all the faces and add them up for surface area

Answer 3

ok what is the base times height for the triangles on the sides

Answer 4

15 and 8 are the base and height

Answer 5

ok now multiply those together and well get the area for both of the triangle sides

Answer 6

then we have the back face of the prism which would be 8*5=?

Answer 7

40

Answer 8

now we have to find the area of the bottom and top faces their dimensions being 15*5 and 17*5

Answer 9

15*5=75 17*5=85

Answer 10

Then add up the areas of all the sides and you'll get the lateral area of the prisim!

Answer 11

15 x 8 + 15 x 8 + 8 x 5 + 15 x 5 + 17 x 5 = ??

Answer 12

518

Answer 13

So you do \[120+40+75+85=?\] and you'll have the area of the prisim

Answer 14

=320

Answer 15

Yep thats right! :D

Answer 16

no you have to add 120 twice cuz there are two of them

Answer 17

can u help me with some more

Answer 18

no when you find the area of the area of a triangle you divide i half once you do the B*H
we just did the B*H and skipped dividing @acxbox22

Answer 19

yah ill help with more :)

Answer 20

yay thank u

Answer 21

find the surface area

Answer 22

ok first lets do 8*13*2

Answer 23

thats for the top and bottom faces all in one go

Answer 24

=208

Answer 25

Oh yeah @Ignaris i forgot thanks :P

Answer 26

yep now do 7*8*2 for the left and right sides

Answer 27

=112

Answer 28

Correct now 13*7*2 for the front and back faces

Answer 29

=182

Answer 30

yep now add them all together and you'll have the surface area

Answer 31

208+112+182=502

Answer 32

you got it!

Answer 33

find the lateral area of the cylinder

Answer 34

@Ignaris

Answer 35

The equation for the lateral area of a Cylinder is
\[A _{L}=2*\pi*r*h\]
so we plug in our terms and get
\[Lateral Area=2*\pi*7*9=?\]

Answer 36

=395.64

Answer 37

your decimal is off by a bit the answer is 395.84

Answer 38

so if we round it then it would be 396 ??

Answer 39

yep

Answer 40

use the net to find the lateral area of the cylinder

Answer 41

Use the same base Equation we used in the last question

\[Lateral Area=2*\pi*r*h\]

Answer 42

a net of any shape is just the shape unfolded

Answer 43

2*3.14*6*7

Answer 44

yep

Answer 45

=263.76

Answer 46

now round up if needed

Answer 47

use the net to find the surface area of the prism

Answer 48

@Ignaris

Answer 49

ok answer these seprately
1. 9*8
2. 9*15
3. 9*17
4. 8*15

Answer 50

1 72
2 135
3 153
4 120

Answer 51

now add them all up and you'll have the lateral area of the prisim

Answer 52

480

Answer 53

yep

Answer 54

how many more?

Answer 55

4 more

Answer 56

ok lets go! :D

Answer 57

use the net to find the surface area of the prism

Answer 58

11*6*2
8*11*2
6*8*2

do those then add them together

Answer 59

132+176+96= 404

Answer 60

yep :D

Answer 61

use the net to find the surface area of the cylinder
give ur answer in terms of pie

Answer 62

just like before

\[LateralArea=2∗π∗r∗h\]

Answer 63

2*3.14*5*7 = 219.8

Answer 64

that rounded up is 220 :D

Answer 65

find the surface area

Answer 66

3*4
3*12
4*12
5*12

then add them up

Answer 67

12+36+48+60=156

Answer 68

By George hes got it!

Answer 69

find the surface area

Answer 70

you try doing this one on your own then post the answer and ill tell you if you get it wrong. :D

Answer 71

or right!

Answer 72

196+84+168=448

Answer 73

you got it :D yay

Answer 74

please close the question if you are done!

Answer 75

thank u for the help (:

Answer 76

Your welcome :D