Question

The area of a rectangle is 259 cm2 and its lenght is 18.5 cm find
i ) its breath
ii ) Its Perimeter

Answer 1

The breadth of rectangle is 14 cm

The perimeter of rectangle is 65 cm

Solution:

Given that,

Area of rectangle = 259 square centimeter

Length of rectangle = 18.5 cm

The area of rectangle is given by formula:

$Area\ of\ rectangle = length \times breadth$

Find the breadth:

Substitute the given values in above formula:

$259 = 18.5 \times breadth\\\\breadth = \frac{259}{18.5}\\\\breadth = 14$

Thus breadth is 14 cm

Find the perimeter:

The perimeter of rectangle is given by formula:

$Perimeter = 2(length + breadth)$

Substitute the given values in above formula:

$perimeter = 2(18.5+14)\\\\perimeter = 2(32.5)\\\\perimeter = 65$

Thus perimeter of rectangle is 65 cm