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प्रश्न
Is the following statement true and false :
A triangle can have two obtuse angles.
विकल्प
True
False
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उत्तर
A triangle can have two obtuse angles.
According to the angle sum property of the triangle
In ΔABC
∠A + ∠B + ∠C = 180°
Now, if a triangle has two obtuse angles
Then,
∠A + ∠B + ∠C = 180°
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संबंधित प्रश्न
Determine the measure of each of the equal angles of a right-angled isosceles triangle.
OR
ABC is a right-angled triangle in which ∠A = 90° and AB = AC. Find ∠B and ∠C.
Fill in the blank to make the following statement true:
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In a Δ ABC, the internal bisectors of ∠B and ∠C meet at P and the external bisectors of ∠B and ∠C meet at Q, Prove that ∠BPC + ∠BQC = 180°.
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Find the unknown marked angles in the given figure:
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x°, 2x°, 2x°
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Match the following:
| Column A | Column B |
| (i) No sides are equal | Isosceles triangle |
| (ii) One right angle | Scalene triangle |
| (iii) One obtuse angle | Right angled triangle |
| (iv) Two sides of equal length | Equilateral triangle |
| (v) All sides are equal | Obtuse angled triangle |
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