Question

What is the perimeter of the given figure correct to one decimal place?

• A. $56.6$ m
• B. $46.5$
• C. $56.7$
• D. $23.7$

Answer 1

The correct option is A $56.6$ m

Perimeter(P)=AB + EF + CD + GH + 4 x Arc AH
$=2\times AB+2\times EF+$ Circumference of circle with radius 2
$=2\times (20-4)m+2\times (10-4)m+2\times \frac{22}{7}\times 2$
= 32 m + 12 m + 12.57 m =56.6m