The inner angles of a triangle are proportional to the numbers 3.5 and 7. What is the larger of its angles?

univerkov | August 9, 2021 | education

Let’s denote the coefficient of proportionality through K. Since the sum of the inner angles of the triangle is 180, then 3 * K + 5 * K + 7 * K = 180.

15 * K = 180.

K = 12.

Then the largest angle of the triangle is * 7 * 12 = 84.

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