Question

Find the area of a semicircle whose diameter is 14 cm

Answer 1

Area of the semi circle= 1/2πr²

Diameter=14

radius=14/2

= 7

= 1/2 πr²

Area= 1/2 *22/7 *7²

= 77cm² Ans✓

Answer 2

Answer:

✨✨77cm²✨✨

Step-by-step explanation:

Diameter(d)= 14cm

Radius(r)= d/2 = 14/2 = 7cm

Area of circle = πr²

(semicircle is half of circle. So,)

1

Area of semi circle = __ πr²

2

1 22

= __ × ___ × (7)²

2 7

1 22

= __ × ___ × 49

2 7

(7 and 49 cancels and 2 and 22 cancels)

= 1 × 11 ×7

= 77 cm²✔️✔️