Question

area of semicircle whose dia is 0.14 cm is

Answer 1

Hii..dude..♥️

d = 0.14 cm

r = 0.07 cm

Area of semi circle = πr^2/2

= 3.14 × (0.07)^2 / 2

= 3.14 × 0.0049 / 2

= 0.015386 / 2

= 0.007693

Answer 2

Answer:

0.77cm²(nearest 2 d.p)

Step-by-step explanation:

The formula for the area of a semi-circle is  πr²÷2. The radius is half the diameter, so therefore radius will be 0.7cm.  0.7²= 0.49.

0.49×π=1.54(2 d.p) and then divide this by 2.