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Triangle

A triangle ha...

Question

A triangle having one obtuse angle and two acute angles is called a /an __________ triangle.

A

right angled

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B

isosceles

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C

obtuse angled

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D

acute angled

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Solution

The correct option is C obtuse angled

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Similar questions

Q. A triangle whose one angle is more than 90° is called

(a) a scalene triangle
(b) a right triangle
(c) an acute triangle
(d) an obtuse triangle

Which is true?

(a) A triangle can have two right angles.

(b) A triangle can have two obtuse angles.

(c) A triangle can have two acute angles.

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

Q. Draw the triangles as suggested.
(a) An acute angled isosceles triangle.
(b) An obtuse angled scalene triangle
(c) A right angled isosceles triangle.
(d) An acute angled scalene triangle.
(e) An obtuse angled isosceles triangle.

Q. State 'True' or 'False':
(i) A triangle can have two right angles.
(ii) A triangle cannot have two obtuse angles.
(iii) A triangle cannot have two acute angles.
(iv) A triangle can have each angle less than 60°.
(v) A triangle can have each angle equal to 60°.
(vi) There cannot be a triangle whose angles measure 10°, 80° and 100°.

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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