The first side is 10 inches the side parallel to this is (10×2)= 20 inches Height is half the length=1/2×20=10 inches The area of trapezium is given by: Area=1/2×h×(a+b) where a and b are the sides, h is the height. Thus the area will be: Area=1/2×10×(20+10) =1/2×10×30 =150 sq. inches
