Question

An octagon has a side length of 18 feet and an area of 806.4 ft^2. Find the area of a smaller octagon that has a side length of 15 ft

Answer 1

Side length: 18 ft

Area: 806.4 ft^2

Side length : 15ft (s)

Ratio of the square side lengths = ratio of areas

18²/15²=806.4/x

Solve for x

x= 560 ft2