Question

Find the area of the door shown in the following
diagram. The top part of the door is a semicircle.

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Answer 1

Step-by-step explanation:

first we have to find rectangular gate

is , height is 160cm and wide is 80 cm

so,

wide *height

160cm * 80 cm

12800 cm ^2

now,

second one is

area of semicricle -1/2 πr

1/2*3.14*40

62.8 cm

therefore

12800+62.8

12862.8 cm^3