Explanation:
Area of triangle on L = 1/2 b * h = 1/2 * 8 * 8 = 32 units^2
Area of triangle on R = 1/2 b*h = 1/2 * 6 *5 = 15 uits^2
Area of rectangle in between = width x height = 2x 5 = 10 units^2
Total area = 32 +15 +10 = 57 units^2
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