Question

if the sides of a rectangle are in the ratio 8 is to 7 and its perimeter is 90 cm find the length of the rectangle​

Answer 1

Step-by-step explanation:

$lb = 8x \times 7x \\ 90 = 56x \\ 90 \div 56 = x \\ 1.60 = x \\ x = 1.60cm$