Question

how to find area of semicircle of radius 2 cm

Answer 1

Answer:

6.42............

Step-by-step explanation:

............

Answer 2

Answer:

Area = 6.28

Step-by-step explanation:

${\frak{\blue{given : }}}$

• Radius = 2 cm

As we know that the area of Circle is πr² and semicircle is the half of the circle, then area of semicircle is 1/2 πr².

$\frak{\blue{formulae \: to \: find \: area \: of \: semicircle: }}$

${\boxed{\frak{\large{ area_{of \: semicircle}}} = \frac{1}{2} \: \pi \: {r}^{2}}}$

• π = 3.14

$\to \sf \frac{1}{2} \times \pi \: {r}^{2} \\ \\ \to \sf \frac{1}{2} \: \times 3.14 \: \times {2}^{2} \\ \\ \to \sf \frac{1}{2} \times 3.14 \: \times 4 \\ \\ \to \sf \frac{1}{2} \times \: 12.56 \\ \\ \bf\to \: 6.28$

So , Area of Semicircle = 6.28 cm².