Find the area of a rectangle that has a diagnol of 13 cm and a height of 5 cm.

Answer 1

Make a diagram, then notice that you have a right-angled triangle with height=5, hypotenuse=13 and base b
so
b^2 + 5^2 = 13^2
b^2 + 25 = 169
b^2 = 144
b= √144
b = 12

so area = base x height = 12(5) = 60

Answer 2

Thank you !