The two right sides of a right triangle are 60cm and 80cm respectively. How many square centimeters is its area? The hypotenuse of this triangle is 100cm long. How high is the hypotenuse?

Area of triangle: 60 × 80 △ 2, = 4800 △ 2, = 2400 (square centimeter); height on hypotenuse: 2400 × 2 △ 100, = 4800 △ 100, = 48 (centimeter). Answer: area of triangle is 2400 square centimeter; height on hypotenuse is 48 centimeter

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