Question

I need help anyone can help:

What are the measures of Angles a, b, and c?

Answer 1

Okay, Here, we go.

Let's start with a.

First, a line always equals 180 degrees. So any angles that are shared on a line must equal 180.
So we take a.
a plus the angle to the top right of it must equal 180 because they are on the same line.
That angle shares a line with the angle marked 40. So we know that the blank angle plus 40= 180, making the blank angle 140.

Back to a, now we know a + 140 = 180.

So what does a equal?

Answer 2

Because of this, angles on two lines that are directly across from each other like a and 40 are will always be equal.

Answer 3

40

Answer 4

Now to tackle b.

We now know a is 40 degrees. We also can tell by that mark that the third angle in that triangle is 90.

Definition of a triangle is that the angles inside a triangle will always equal 180 degrees.

So a + 90 + b = 180
40 + 90 +b = 180
130 +b = 180
b = 180 - 130
b=

Answer 5

For c we go back to the same way we did a.

The angle of c is on the same line as 65.
A line being 180:
c + 65 = 180

Answer 6

ohhh

Answer 7

Can you help me with two more problems?

Answer 8

I mean if you have time

Answer 9

I can try, what do you have?

Answer 10

Circle A has a diameter of 9 inches, a circumference of 28.26 inches, and an area of 63.585 square inches. The diameter of circle B is 5 inches, the circumference is 15.70 inches, and the area is 19.625 square inches..

Part A: Using the formula for circumference, solve for the value of pi for each circle

Part B: Use the formula for area and solve for the value of pi for each circle.

Part C: What observation can you make about the value of pi for circles A and B?

Answer 11

Fair warning, I don't know circles as well, so I have to look up some of these.

Answer 12

Its fine I just need help understanding

Answer 13

Okay, Part A

The inernet tells me the formula we need here is :
\[\frac{ C }{ D } = pi\]

We know C for each and we know D for each, so it seems like just a simple place the values, simplify and call it a day.

Answer 14

Oh okay I get it now! Thank you!

Answer 15

Can you help me with this one last question?

Answer 16

I hope you get Part B on that other one, because I simply got nothing.

Yea, what's the next one?

Answer 17

A candy bar box is in the shape of a triangular prism. The volume of the box is 3,240 cubic centimeters.

Part A: What is the height of the box?

Part B: What is the approximate amount of cardboard used to make this candy box?

Answer 18

Okay, had to do some research there.

I'm not 100% on this one, and I'd recommend asking this one as a standalone question to see if someone could help you, because what I see is that the height is the distance of the longest side, so in this case 30 cm.

As for B:
That is a simple area of each side added.

So you have two triangles you want the area of:
A = 1/2 b x h
b= 24
h= 15

And then three rectangles you'd want the area of
A = b x h
b= 24 (triangle edges)
h= 30 (given long side)

So do:
2(triangle area) + 3(rectangle area) = cardboard amount

Answer 19

Assuming any of that made sense as to why.

Answer 20

That made no sense what so ever lol :P

Answer 21

Thank you for you're help!

Answer 22

You're welcome. Hopefully this helped you understand the how and why to these questions so you have an easier time with others. :)