Question

The diagonal of a rectangle is 100 units. The width is 80 units. What is the area of the rectangle in square units.

Answer 1

4800 square units

Explanation:

a²+b²=c²so

80²+b²=100²

6400+b²=10000 (subtract 6400 from both sides)

3600=b² (square root both sides)

b=60

A=bw so

60(80)=

4800 square units