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Triangle abc has the angle mesausres shown. Which statement is true about the angles?

Triangle abc has the angle mesausres shown. Which statement is true about the angles-example-1

2 Answers

3 votes

Answer:

m∠A = 20°

Explanation:

Given that the sum of the angles of any triangle is 180°, adding the expressions of each angle and setting them equal to 180° will give the value of 'x' and allow you to evaluate the angles.

2x + 5x + 11x = 180

18x = 180

18x/18 = 180/18 or x = 10

m∠A = 2x or 2(10) = 20°

m∠B = 5x or 5(10) = 50°

m∠C = 11x or 11(10) = 110°

Out of the choices given, the only one that is true is that m∠A = 20°.

User Dariusz Sikorski
by
8.4k points
4 votes

Answer:

A) m<A = 20 degrees

Explanation:

User Rjf
by
8.3k points

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