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Point A, B and C are non collinear points in a plane.

Is it possible to draw a triangle with A, B and C?

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Important Questions on Basic Geometrical Ideas

MEDIUM
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
Count the number of triangles formed in the given figure.
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EASY
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
Find the angles of a triangle which are in the ratio 4:3:2.
EASY
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
Can a triangle have two right angles?
MEDIUM
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
Draw a rough sketch of a triangle ABC. Name its sides, vertices, and angles. Draw all the medians of the triangle.
EASY
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
Define triangle
MEDIUM
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
Each of the two equal angles of an isosceles triangle is twice the third angle. Find the angles of the triangle.
MEDIUM
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
How many triangles can be drawn with four non-collinear points?
EASY
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
In a ∆ABC, if ∠A = 72° and ∠B = 63°, find ∠C.
EASY
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
Can an isosceles triangle be a right triangle?
EASY
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
In the given figure, DE || BC. If ∠A = 65° and ∠B° = 55, find ∠ADE.

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EASY
Mathematics>Geometry>Basic Geometrical Ideas>Triangles

In the given figure, find the number of triangles and name them.

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EASY
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
Explain the following term:
Interior of a triangle
MEDIUM
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
In a ∆ABC, if 2∠A=3∠B=6∠C, calculate ∠A,∠B and ∠C.
EASY
Mathematics>Geometry>Basic Geometrical Ideas>Triangles

Identify the altitude of the triangle ABC.

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MEDIUM
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
If one angle of a triangle is equal to the sum of the other two, show that the triangle is right-angled.
EASY
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
The acute angles of a right triangle are in the ratio 2:1. Find each of these angles.
EASY
Mathematics>Geometry>Basic Geometrical Ideas>Triangles

The interior of a triangle includes its vertices. 

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Mathematics>Geometry>Basic Geometrical Ideas>Triangles
What is the measure of each angle of an equilateral triangle?
EASY
Mathematics>Geometry>Basic Geometrical Ideas>Triangles
One of the acute angles of a right triangle is 36°. find the other.
MEDIUM
Mathematics>Geometry>Basic Geometrical Ideas>Triangles

Find the number of triangles in the given figure.

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