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The area of a right triangle that has legs 7 cm and 4 cm long can be calculated using the fact that a right triangle is half of a rectangle. The area of a rectangle is l*h, so the area of a right triangle is l*h/2. In this case, the area is 14 cm^2.
4 * 7 = 28 28/2 = 14 sq cm
no.
Area of the triangle: 0.5*5*14 = 35 square units of measurements
Area of a triangle = (1/2) x (base) x (height) Can you take it from there ?