Question

# Find the value of x and classify the triangle by its angles.

Hint:

### Find the value of x by using the sum of angles of triangle ABC is 180° .

## The correct answer is: x = 90 ,the triangle is an obtuse angled triangle.

### ANS :- x = 90 ,the triangle is an obtuse angled triangle.

Explanation :-

Given , the angles of the triangle are 50°,30°and (x+10)°.

50°+ 30°+ x+10°=180° (sum of angles in a triangle)

x°+90° = 180°

x° = 90°

∴ x = 90

We get angle x + 10 = 90 + 10 = 100° (> 90° so, obtuse angle)

One of the angles of the triangle is obtuse. so, the triangle is an obtuse angled triangle

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shown) to February. Which of the following is closest

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