Question

find the area and perimeter of a rectangle whose lenght is 15 cm and diagonal is 17​

Answer 1

Answer:

Area: 120 cm^2

Perimeter: 46 cm

Explanation:

Length = l

Diagonal = d

Area/a: l (d^2 - l^2) =  15 * (17^2 - 15^2)^(1/2) = 120 cm^2

Perimeter/p: P=2l+2 (d^2﹣l^2) ^ (1/2) = (2 * 15) + 2(17^2-15^2) = 46