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The area of a triangle is calculated by multiplying the base by the height and dividing the result by 2. In this case, the area of the triangle would be (5 cm x 7 cm) / 2 = 35 cm².
14cm
It is 1.4 cm and 0.6 cm.
294 cm^2
Surface area of sphere: 4*pi*7^2 = 196*pi square cm