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45m

Step-by-step explanation:

3*4.5 =13.5

7*4.5= 31.5

13.5+31.5= 45m

(you would do 4.5 because each triangles length is only half of the 9m across. you also would not have to divide by 2 like you usually would when finding the area of a triangle becuase there are 2 congruent triangles)

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing

step-by-step explanation:

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

it alot will look like this 4.4