The sum of two angles is 180 ° and if one angle is obtuse, then the other one will be ___.

reflex angle

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obtuse angle

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acute angle

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right angle

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Solution

The correct option is C acute angle

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Similar questions

Q. The sum of two angles is 180 ° and if one angle is obtuse, then the other one will be ___.

Question 11
If the sum of two angles is greater than $180^{\circ}$ , then which of the following is not possible for the two angles?
a) One obtuse angle and one acute angle
b) One reflex angle and one acute angle
c) Two obtuse angles
d) Two right angles

If one angle of a triangle is greater than the sum of other two so that the triangle is obtuse angle triangle

Q. If one angle of a triangle is greater than the sum of the other two, show that the triangle is obtuse-angled.

Q. Which of the following statements are true (T) and which are false (F):

(i) Sum of the three angles of a triangle is 180°.

(ii) A triangle can have two right angles.

(iii) All the angles of a triangle can be less than 60°

(iv) All the angles of a triangle can be greater than 60°.

(v) All the angles of a triangle can be equal to 60°.

(vi) A triangle can have two obtuse angles.

(vii) A triangle can have at most one obtuse angles.

(viii) If one angle of a triangle is obtuse, then it cannot be a right angled triangle.

(ix) If one angle of a triangle is obtuse, then it cannot be a right angled triangle.

(x) An exterior angle of a triangle is less than either of its interior opposite angles.

(xi) An exterior angle of a triangle is equal to the sum of the two interior opposite angles.

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