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

Question

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] · Answer 1 · 2021-12-07T06:30:43+03:00

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