In the diagram below, BC = QR = x, AC = PR = y, and triangle PQR is a right triangle. Use the drop-down menus to complete the proof that if the equation
x2 + y2 = z2 is true of the side lengths in triangle ABC, then triangle ABC must be a right
triangle.

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

$30.32

step-by-step explanation:

65.00*.12=2.80

65.00-2.80=57.20

57.20*1.06=60.632

60.632/2=30.316