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EleoNora [17]
2 years ago
5

The interior angles of a triangle are

Mathematics
1 answer:
lbvjy [14]2 years ago
4 0

Answer:

8x+13y = 130

Step-by-step explanation:

sum of interior angles in a triangle is 180 degree

interior angles are (5x+3y)∘,(3x+20)∘, and (10y+30)

add all the angles and make it equal to 180

5x+3y+3x+20+10y+30= 180

combine like terms

5x+3y+3x+20+10y+30= 180

8x+13y+x+50= 180

subtract 50 from both sides

8x+13y = 130

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Answer:

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see image.

Step-by-step explanation:

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