EASY
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The exterior angle of a triangle is equal to sum of two interior angles.

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Important Questions on Triangle and Its Properties

MEDIUM
Find the value of the unknown interior angle x(in °) in the following figure. Write the numerical value as the final answer.
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EASY
If the exterior angles of a triangle are (2x+10)°,(3x-5)° and (2x+40)°, then x=
MEDIUM

In figure if x°, y° and z° are exterior angle of ABC, then x°+y°+z° is

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EASY
In the figure (not drawn to scale), ADF and BEF are triangles and EC = ED, find y.
MEDIUM
In the given figure, O is the centre of the circle and TP is the tangent to the circle from an external point T. If PBT=30° then BA:AT is
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MEDIUM
Find the value of the unknown exterior angle x in the following diagram. Write the numerical value as the final answer.
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HARD

Triangle ABC is isosceles with AB=AC. The measure of angle BAD is 30° and AD=AE. The measure of angle EDC, is

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EASY

Find the measure of the angle x in the given figure.
 

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MEDIUM

Find the value of the unknown interior angle x( without degree) in the following figure:
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EASY

In the figure, if AB||CD, the values of x, y and z are

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HARD

In the diagram AMN, QRM and PRN are all straight lines. The value of α+β is:

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HARD
As shown in the figure, AC=CD, CAB- ABC=30°. Then BAD has a measure of 

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EASY
In the figure (not drawn to scale), ABC and DEF are two triangles, CA is parallel to FD and CFBE is a straight line.
Find the value of x+y.
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