Question

Two question geometry help please!!

Answer 1

The two triangles are proportional two each other. If you divide the given lengths of the corresponding sides, you'll find the proportion. With this, you should be able to find the area of the larger triangle given the area of the smaller triangle.

Answer 2

Thanks

Answer 3

No problem. Keep in mind that the proportion is in 1-dimension; it only applies to the lengths of the triangles. To find the area, which is in 2-dimensions, you'll need to multiply by the proportion squared.

Answer 4

Okay, that part'll be harder for me XD

Answer 5

How would I do that part?

Answer 6

Just remember, to square a number, multiply it by itself.

Answer 7

Okay

Answer 8

Did I do this right?

Answer 9

Pretty close. Just a quick check; what's 10 * 1.5?

Answer 10

Where did I go wrong?

Answer 11

Oh, I think somehow you got 12 as the missing length of the larger triangle. It should be equal to 10 * 1.5, right?

Answer 12

yes, is this right now?

Answer 13

Yup, I'd say it checks out. Good work

Answer 14

thanks, could you help with the next one?

Answer 15

Sure thing

Answer 16

So we're finding the volume of a sphere. The equation for a sphere's volume is kind of weird, but here it is: Volume = 4/3 * pi * radius^3 (radius cubed).
Now, you're given the diameter of the sphere, so you should be able to find the radius. From there, you can just use the equation to calculate the volume.

Answer 17

Okay, thanks :)

Answer 18

No problem :)

Answer 19

is this right?

Answer 20

yeah 144 is right

Answer 21

would be good to included units (144m^3)

Answer 22

Okay thank you.