Area = Pi * (r^2)

*note: r^2 means radius squared*

Area = Pi * (3^2)

Area = Pi * 9

Area = 28.27 square inches

You made your error because you multiplied 3 by Pi and then squared, instead of squaring three and then multiplying by Pi

2) The equation for the area of a triangle is:

Area = 1/2*b*h

36 = (1/2) * 8 *h multiple both sides by 2 to clear the 1/2

72 = 8 * h divide both sides by 8

9 inches = height

You made your error in step #1 -you divided by 2 instead of multiplying by it

triangle: area=1/2bh. 36=(1/2)(8)(h), 36=4h, h=9.

Good Luck!

triangles are base times height divided by 2 so youhave to do 36 divided by 2 then divide by 8