19th April, 2012: How do we solve surface area and volume problems?

Review:
Area of a triangle: A= (BH/2) X2

Area of a kite: A= D1 (diagonal 1) X D2 (diagonal 2) /2


Given a semi-circle within a triangle, to find the area of the shaded region, you'd find the area of the triangle, area of the circle, then divide by two (since its a semi-circle). Then, you'd subtract the area of the circle from the triangle.