Question

The length and the width of a rectangle are (x+5)cm and 3 cm respectively. find the value of x if the area of the rectangle is 42 cm.

Answer 1

Answer:

Length=(x+5)cm

width=3cm

Area= Length × width

42 = (x+5) × 3

42/3 = (x+5)

14 = (x+5)

x = 14-5

x = 9

HOPE IT WILL HELP YOU..

Answer 2

Solution :-

Given : The length and the width of a rectangle are (x+5)cm and 3 cm respectively.

The area of the rectangle is 42 cm².

According to the question,

=> Area of rectangle = (Length × Width)

=> 42 = (x + 5) × 3

=> x + 5 = 42/3

=> x = 14 - 5 = 9

Hence,

∴ The value of x = 9 cm