•16square units 1)imagine another triangle on top/ draw one 2)write out measurements 3)work out the area of your new triangle- 1/2BxH-1/2x8x9=36^2 4)work out the area of the original triangle excluding the shaded area- 1/2x5x8=20^2 5)subtract the original triangle area from the new triangle 36-20=16 6) you now have the area of the shaded triangle= 16^2 units OR just work out the area of the shaded area using the area formula 1/2x4x8= 16^2 units
