Question

Esther starts at one corner of a square field and walks 90 feet along one side to another corner of the field. She turns 90° and walks 70 feet, and then walks straight back to where she started. What is the area of the part of the field she walked around?

a. 3150 ft²
b. 4900 ft²
c. 6300 ft²
d. 8100 ft²

Answer 1

The three sides make a right triangle and you know the base (90) and the height (70)

A = 1/2 bh or 1/2 x (70)x (90)= 3150 ft²