Math, asked by renu391527, 1 year ago

In a ∆ abc angle a = x°angle b=y° and angle c=(y+20)° if 4x-y =10 show that the triangle is a right angled triangle

Answers

Answered by princisoni
6

a+b+c=180

Step-by-step explanation:

put the value of all alfabets

x+Y+(Y+20)=180

X+2Y+20=180

x+2y=180-20

x+2y=160

X=160-2Y

X=2 (80-Y)

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