NEED HELP ASAP! WILL MARK BRAINLIST

B

Step-by-step explanation:

cut tghe shape into one rectangle and a two cimi circles

area of a rect. is b x h --> 7x14 = 98ft^2

now make the two cimi circles a whoal and find the area of a circle

pie r^2 --> 3.14x3.5^2 = 38.48

add both getting about 136.48

136.48 ft^2 (B)

Step-by-step explanation:

First, we need to find the area of a rectangle.

A(rectangle) = l * w

  = 14 ft * 7 ft

  = 98 ft^2

Next we need to find the area of the two semicircles.

A(semicircle) * 2 = πr^2/2 * 2

                           = π(3.5 ft)^2

                           = 12.25π ft^2

                           = 38.48 ft^2

Finally, you add the two areas:

98 ft^2 + 38.48 ft^2 = 136.48 ft^2

Hope this helps!

if x = 1, then the answer is 3.5

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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