What will be the area of a semi-circle of 14 m diameter? · ABC26GN4597

Subject: General Aptitude · Chapter: Area

What will be the area of a semi-circle of 14 m diameter?

(a)$22 \mathrm{m}^{2}$

(b)$77 \mathrm{m}^{2}$

(c)$154 \mathrm{m}^{2}$

(d)$308 \mathrm{m}^{2}$

(e)None of these

Answer

Answer (as printed): B

Explanation

Area of the semi circle $$=\frac{1}{2} \pi R^{2}=\left(\frac{1}{2} \times \frac{22}{7} \times 7 \times 7\right) \mathrm{m}^{2}=77 \mathrm{m}^{2} .$$

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