Register
A rectangle has a perimeter of 60 cm. It's length is 21 cm. What is its width (w)?
476,739 views
17 votes
17 votes
A rectangle has a perimeter of 60 cm. It's length is 21 cm. What is its width (w)?

User Ququzone
by
2.5k points

2 Answers

20 votes
20 votes
Okay so we know the length is 21. But with perimeter, we have two lengths. So 21+21 is 42. Then subtract 42 from 60, which is 18. Then, since we know there are two widths, divide 18 by 2. This gives you 9. 9cm
User Aniri
by
2.0k points
22 votes
22 votes
It’s width is 9cm.

We use the formula P = 2(l + w) in which the formula goes as:

w= p/2 - l= 60/2 - 21

= 9cm!

User Mesnicka
by
3.2k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers

Other Questions

Can anybody tell me what’s going on here?
Granola costs $1.76 per pound. Write and solve an equation to determine the number of pounds p of granola that can be purchased with $7.04. The equation is: The value of x is
PLZ needed now plz URGENT!
Yall help me out please
If y = sin 3x, find y" in terms of y.
Link Copied!