46.8k views
4 votes
A rectangle has perimeter 84 cm and length 35 cm. What is its width?

2 Answers

4 votes
P = 2(L + W)
84 = 2(35 + W)
84/2 = 35 + W
42 = 35 + W
W = 42 - 35
W = 7

answer
its width 7 cm

User Xxyyxx
by
8.1k points
2 votes

Answer: The required width of the rectangle is 7 cm.

Step-by-step explanation: Given that a rectangle has perimeter 84 cm and length 35 cm.

We are to find the width of the rectangle.

Let w represents the width of the rectangle.

According to the given information,

length, l = 35 cm and perimeter, P = 84 cm.

Therefore, we get


P=2(l+b)\\\\\Rightarrow 84=2(35+w)\\\\\Rightarrow 42=35+w\\\\\Rightarrow w=42-35\\\\\Rightarrow w=7.

Thus, the required width of the rectangle is 7 cm.

User Joseph Wright
by
7.8k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories