Question

Work out the area of a rectangle with base, b = 34mm and perimeter, P = 82mm.​

Answer 1

Answer:

$34 \times 2 = 68 \\ 82 - 68 = 14 \\ width = 14 \div 2 = 7 \\ area = 34 \times 7 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 238 {mm}^{2}$

Answer 2

Given:

• Base,b= 34mm
• Perimeter, P= 82mm

To find out :

The area of a rectangle?

Formula used:

• Perimeter of rectangle = 2(l+b)
• Area of rectangle = length × breadth

Solution:

we know that,

Perimeter of rectangle = 2(l+b)

82= 2(l+34)

82=2l+68

2l=82-68

2l=14

l=7

Area of rectangle = length × breadth

= 7 × 34

= 238 mm²