Question

the perimeter of a semicircular garden is 180 m find the area of the garden​

Answer 1

Let radius of the garden ▶ r

Given, perimeter ▶ 108

=> Diameter of the garden + semi-circumference of the garden = 108

So,

=> 2r + πr = 108

=> r(2 + π) = 108

=> r(2 + 22/7) = 108

=> r(14 + 22)/7 = 108

=> 36r/7 = 108

=> r/7 = 108/36

=> r/7 = 3

=> r = 3×7

=> r = 21

So,

diameter of the garden = 2r = 2×21 = 42 cm

Answer 2

Answer:

1925 sq cm

Step-by-step explanation:

answer is shown above in the image

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