The area of a regular octagon is 35 cm². What is the area of a regular octagon with sides three times as long?

Answer 1

The new area is 35x9=315cm2

Answer 2

3x increase in side length corresponds to a 9x increase in area

Answer 3

Thankyou so much, and thanks for telling me how to do it. :)

Answer 4

the area of a regular octagon is 35 cm square. what is the area of a regular octagon with sides five times as long?

Answer 5

175 cm