the sum of all the angles in a triangle are equal to 180
so you can add the 3 given angles together to equal 180:
5y + 2y + 2y = 180
or since all three angles have the same letter, combine the 3 angles to equal 180:
9y = 180
Answer from: Quest
Bis the right answer
Answer from: Quest
answer: about 22.67
step-by-step explanation:
Answer from: Quest
step-by-step explanation:
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