Question

9. The length of a rectangle is three times its width. It the perimeter is 84 m, find the
the lenght of the rectangle.


please solve this question please please I will give you 20 pts
don't send nothing else other wise I report your answer​

Answer 1

Step-by-step explanation:

ANSWER

We have,

Let, width=xm

∴3xm

Given, rectangle=84m

2(length+width)=84

2(3x+x)=84

2×4x=84

8x=84

x=

8

84

x=

2

21

x=10.5m

Width of rectangle, x=10.5m

Length of rectangle 3x

=3×10.5m

=31.5m

Hence, this is answer.

solution