A rectangle has a perimeter of 50 cm. If the ratio of its length to its width is 3:2, find the length of the rectangle?
3 Answers
Length is
Explanation:
As length and width are in the ratio of
then perimeter is
Hence
or
and length is
Length
Explanation:
Perimeter #(P) is the total distance around the sides.
Let length
We are told that the ratio of
Substitute for
But
Substitute
Explanation:
#"sum the parts of the ratio "3+2=5#
#P=2(l+b)=50#
#l+b=50/2=25#
#25/5=5larrcolor(blue)"1 part"#
#"length (l)"=5xx3=15" cm"#
#"breadth (b)"=5xx2=10" cm"#
#P=2(15+10)=2xx25=50" cm"#