Question

Area of each of the following figures is 64 sq.cm.
Match the missing lengths of the figures with their values.

• A. 8 cm
• B. 4 cm
• C. 32 cm

Answer 1

1. Area of a triangle:$Area=\frac{1}{2}\times base\times height$
$Area=\frac{1}{2}\times 4\times h$
$64=\frac{1}{2}\times 4\times h$
$2\times h=64$
$h=32cm$

2.Area of a rectangle

$Area=length\times breadth$
$Area=16\times b$
$64=16\times b$
$16\times b=64$
$b=4cm$

3.Area of a square:
$Area=sid{e}^2$
$64=s^2$
$s=\sqrt{64}=8cm$