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maks197457 [2]
3 years ago
15

Does anyone know the steps to this you don't have to give me the answers but just the steps plz​

Mathematics
1 answer:
Oliga [24]3 years ago
7 0

Answer:

a. For the outside perimeter, as you can see, it consists of half-circle at the top and a rectangular below,

Perimeter = Perimeter of half circle + Perimeter of rectangular

                = 2 x pi x 10/2 + (60 + 20) x 2 = 10pi + 160 = 191.42

b. Area of triangle 3 = base x height x 1/2 = 20 x 16/2 x 1/2 = 80

c. Area of rectangular 1 = length x width = (20/2) x width = 10 x width (here width is undefined).

d. Area of triangle 5 = base x height x 1.2 = 16 x 20/2 x 1/2 = 80

e. Area of half-circle 10 = Radius^2 x pi x 1/2 = 10^2 x pi x 1/2 = 50pi = 157.08

a, b, c, d, e are marked from top to bottom of table you need to fill in.

Hope this helps!

:)

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