The sides of a rectangle are in a 3:4 ratio. What is the length of the shorter sides of the rectangle if its perimeter is 42 cm?

A. 9 cm

B. 12 cm

C. 18 cm

D. 24 cm

Question

The sides of a rectangle are in a 3:4  ratio. What is the length of the shorter sides of the rectangle if its perimeter is 42 cm?
 
A. 9 cm
 
B. 12 cm
 
C. 18 cm
 
D. 24 cm

anonymous · Answer

9

anonymous · Answer

You can get that by even process of elimination

anonymous · Answer

Can't be d because that would mean your shorter side gives you a greater perimeter than possible. Can't be c because that would mean the other sides have be equal to 6 so no. Cant be 12  because that wouldnmean the other sides of the rectangle would be 9 making this not the shorter side. Therefore it has to be 9