Use the Pythagorean Theorem to find the other side length, as the triangle formed by the 6ft and the 10ft side is a right triangle. 6^2 + ?^2 = 10^2 36 + ?^2 = 100 ?^2 = 100 - 36 ?^2 = 64 ? = 8 Now you know the rectangle is 6ft by 8ft, you can find the area by multiplying the two, and the perimeter by doubling both then adding. Final Answer: area = 6 * 8 = 48ft^2 perimeter = 6*2 + 8*2 = 28ft Hope I helped :)
