MEDIUM
7th CBSE
IMPORTANT
Earn 100

Each of the two equal angles of an isosceles triangle is twice the third angle. Find the angles of the triangle.

Important Questions on Properties of Triangles

MEDIUM
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 15 - Properties of Triangles>EXERCISE 15A>Q 9
If one angle of a triangle is equal to the sum of the other two, show that the triangle is right-angled.
MEDIUM
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 15 - Properties of Triangles>EXERCISE 15A>Q 10
In a ∆ABC, if 2∠A=3∠B=6∠C, calculate ∠A,∠B and ∠C.
EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 15 - Properties of Triangles>EXERCISE 15A>Q 11
What is the measure of each angle of an equilateral triangle?
EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 15 - Properties of Triangles>EXERCISE 15A>Q 12
In the given figure, DE || BC. If ∠A = 65° and ∠B° = 55, find ∠ADE.

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EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 15 - Properties of Triangles>EXERCISE 15A>Q 12
In the given figure, DE || BC. If ∠A = 65° and ∠B° = 55, find ∠AED.

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EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 15 - Properties of Triangles>EXERCISE 15A>Q 12
In the given figure, DE || BC. If ∠A = 65° and ∠B° = 55, find ∠C

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EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 15 - Properties of Triangles>EXERCISE 15A>Q 13
Can a triangle have two right angles?
EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 15 - Properties of Triangles>EXERCISE 15A>Q 13
Can a triangle have two obtuse angles?