A semi-circular shaped window has diameter of 63 cm. Its perimeter equals · ABC26GN4598

Subject: General Aptitude · Chapter: Area

A semi-circular shaped window has diameter of 63 cm. Its perimeter equals

(a)126 cm

(b)162 cm

(c)198 cm

(d)251 cm

Answer

Answer (as printed): B

Explanation

Perimeter of window $$=\pi R+2 R=\left(\frac{22}{7} \times \frac{63}{2}+63\right) \mathrm{cm}=(99+63) \mathrm{cm}=162 \mathrm{cm} .$$

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