Question

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John is putting a fence around his garden that is shaped like a half circle and a rectangle

Answer 1

46 ft

Explanation:

John will need to put a fence along 3 sides of the rectangle: 14 ft, 7 ft, 14 ft

He also needs to put a fence along the half circle:

C (circumference) = 2×π×r = π×d

⇒C÷2 = π×d÷2 = 22/7×7÷2 = 22÷2 = 11 ft

Together: 14 + 7 + 14 + 11 = 46 ft

Answer 2

46 feet

Explanation:

Perimeter of rectangle needed =

`14+14+7= 35\\`

Half of the circumference of a circle needed =

`(1)/(2) \pi d = (1)/(2) * (22)/(7) * 7= 11`

Total perimeter needed =

`35 + 11=46`