Question

the perimeter of a triangle is 45 cm and the width is 15 cm find the length​

Answer 1

Answer:

Perimeter= 2(l+b)

=2(45+15)

=2×60

=120

Hope it helps u dear.....

Answer 2

Answer:

the perimeter of a triangle is 45 cm and the width is 15 cm find the length

there is mistake in question which have underlined. instead of triangle, rectangle is come

Explanation:

Perimeter of a rectangle

= 2(l+b) = 45

= 2(l+15) = 45

= l+15 = 45/2

= l+15 = 22.5

l = 22.5 - 15

length = 7.5 cm