Question

Q.No.8. Find the value of 'y' in the given triangle.

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Answer 1

Answer:

55°

Step-by-step explanation:

we know that the sum of three sides of triangle is 180°.

so,

A+B+C = 180°

70°+y+y=180°

2y =180°-70°

2y = 110°

y = 110°

2

y=55°

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Answer 2

Answer:

1. Angle 70°+angle y°+angle y°=180
2. Angle 70°+2 angle y°=180
3. 2angle y°=180°-70°
4. 2angle y°=110°
5. angle y°=110/2
6. angle y°=55