Question

The length and the breadth of a rectangle are 6 cm and 4 cm respectively. Find the height of a triangle whose base is 6 cm and area is 3 times that of the rectangle.

Answer 1

$l=6cm,$ $b=4cm$

Area of rectangle $=l\times b=6\times 4=24\text{c}{\text{m}}^{\text{2}}$

Area of $\Delta =\frac{1}{2}\times b\times h=3\times \text{area of rectangle}$

$\frac{1}{}\times {}^{}\times h=\times 24$

$h=24\text{cm}$