Find the area of semicircle whose diameter is14
Answers
Answered by
12
Diameter = 14 unit
∴ Radius = (14/2) unit
= 7 unit
Area of a semi-circle = 1/2 πr²+ 2r
∴ Area = 1/2 ×(22/7)× (7)² + (2×7)
= (22×49×2×7)/(7×2) +(2×7)
= (22×49) + (2×7)
= 1078 + 14
= 1092 unit²
∴ The area of the semi-circle is 1098 unit².
Answered by
10
Step-by-step explanation:
Diameter = 14 unit
∴ Radius = (14/2) unit
= 7 unit
Area of a semi-circle = 1/2 πr²+ 2r
∴ Area = 1/2 ×(22/7)× (7)² + (2×7)
= (22×49×2×7)/(7×2) +(2×7)
= (22×49) + (2×7)
= 1078 + 14
= 1092 unit²
∴ The area of the semi-circle is 1098 unit².
Similar questions