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What is the value of y?



Enter your answer in the box.

y =

What is the value of y? Enter your answer in the box. y =-example-1
User Gfgm
by
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1 Answer

5 votes

since this is an isosceles triangle

5x =40

divide by 5

x=8

the sum of all angles in a triangle is 180

5x+40 + 2y+20 = 180

substitute 40 in for 5x

40 + 40 + 2y+20 = 180

combine like terms

100 + 2y = 180

subtract 100 from each side

2y = 80

divide by 2

y= 40

User Minsheng Liu
by
7.6k points

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