Question

Base of a triangle is 12 and height is 10. Base of another triangle is 20 and

height is 12. Find the ratio of areas of these triangle​

Answer 1

Answer:

The required ratio is 3 : 4.

Step-by-step explanation:

Let,

The triangle having 9 units as base and 5 units as height is ∆ ABC

And,the triangle having 10 units as base and 6 units as height is ∆ PQR

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Now,

Area of ∆ ABC = (base × height)/2

Area of ∆ ABC =(9×5)/2

Area of ∆ ABC = 45/2 = 22.5 unit²

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Area of ∆ PQR = (10×6)/2

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Area of ∆ PQR = 10×3=30 unit²

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Ratio = 22.5 : 30

Ratio= 225:300

Ratio = 3:4