please tell me answer fast my exam is going on I will mark him brainliest answer
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Step-by-step explanation:
Sum of the three angles = 180°. So, we have. 2x + 7x + 11x = 180°. 20x = 180. x = 9. Then, the first angle = 2x = 2 ⋅ 9 = 18°. The second angle = 7x = 7 ⋅ 9 = 63°. The third angle = 11x = 11 ⋅ 9 = 99°. So, the angles of the triangle are 18°, 63° and 99°.
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