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Airida [17]
3 years ago
13

Solve for y. Enter your answer in the box. An equilateral triangle A B C. Side B C is the base. Sides A B, B C, and A C are equa

l. Sides A B, B C, and A C are labeled with single tick marks. Angle A is labeled as left parenthesis 5 y plus 10 right parenthesis degrees, and angle C is labeled as left parenthesis 6 x plus 6 right parenthesis degrees.
Mathematics
1 answer:
Strike441 [17]3 years ago
6 0

Answer:

y = 10

Step-by-step explanation:

By definition, the internal angles of an equilateral triangle are all 60. So:

A = 5y + 10 = 60

5y + 10 = 60

5y + 10 - 10 = 60 - 10

5y = 50

5y/5 = 50/5

y = 10

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