miabarrett7116 miabarrett7116

03-12-2018
Mathematics

contestada

The dimensions of triangle A are three times the dimensions of triangle B. The area of triangle A is 189 cm2. What is the area of triangle B?

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tramserran tramserran

03-12-2018

Answer: 21 cm²

Step-by-step explanation:

Area of B = (b * h)/2

Area of A = (3b * 3h)/2

189 = 9(b * h)/2

÷ 9 ÷9

21 = (b * h)/2

21 = Area of B

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