Question

6. Jason designed an arch made of wrought iron for the top of a mall entrance. The 11 segments between the two concentric circles are each 1.25 m long. Find the total length of wrought iron used to make the structure. Round the answer to the nearest meter. Show your work.

Answer 1

@soprano.h.d0816

Answer 2

@agent0smith

Answer 3

Find the length of the two semicircles. Outer circle has diameter 15, inner circle has diameter 15 - 2*1.25.

Circumference = pi*D, for a semicircle it's half that.

Add together the length of the semicircles, and add 11*1.25 for the eleven segments.

Answer 4

so 39??

Answer 5

I have no idea, you showed zero work. But it appears quite incorrect.

Answer 6

You need:

length of outer semicircle

length of inner semicircle

Once you have those, add them together and add 11*1.25

Answer 7

so the inner semicircle is 16.25

Answer 8

so the answer is 45 m

Answer 9

@agent0smith

Answer 10

No. You aren't showing any work.

Show all your work. For the inner semicircle, outer semicircle, and then the sum of those two and 11*1.25.

Answer 11

Inner semicircle length is wrong, so is the final answer.

Answer 12

how about you tell me what i did wrong

Answer 13

I can't tell what you did at all, since you showed no work...

Answer 14

My very first post has the directions of what to do