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The sum of all interior angles of a Heptagon is 

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Important Questions on Lines and Angles

EASY

If ABC is a straight line then value of x, in the given diagram will be 

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In quadrilateral ABCDB=90°,C-D=60° and A-C-D=10°. Find the measure of the smallest angle of this quadrilateral.
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The point of concurrence of three interior angle bisectors of a triangle is called 
EASY
The supplementary angle of the complementary angle of angle having measure 23 has measure 
EASY
The hypotenuse is the _____side in right triangle.
EASY

Consider the following statements when two straight lines intersect :
i) Adjacent angles are complementary.
ii) Adjacent angles are supplementary.
iii) Vertically opposite angles are equal.
iv) Vertically opposite angles are supplementary.

EASY
If the measure of each interior angle of a regular polygon is 135°, then the number of its sides is
EASY
If cot θ=2+1, then cosec θ sec θ=?
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The in-radius and circumradius of a right-angled triangle is 3 cm and 12.5 cm, respectively. The area of the triangle is:
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In the given figure, ABC is an isosceles triangle with AB = AC. If AE = AF and BAE=40°, then the measure of the angle FEC is

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EASY

The rod AC of a TV disc antenna is fixed at right angles to the wall AB and a rod CD is supporting the disc as shown in the figure. If AC=1.5 m long and CD=3 m, find secθ+cosecθ

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If sinθ=1213, find the value of cosθ & tanθ.

EASY
In the right triangle shown in the figure, what is the value of cosecθ?
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MEDIUM
The angles of quadrilateral are in the ratio 1:3:7:9. The measure of the largest angle is
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In a triangle, the angle opposite to the longest side is the smallest.
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The angles of a quadrilateral are in the ratio 1:2:3:4. Find the measure of each angle.

EASY

The quadrilateral formed by angle bisectors of a cyclic quadrilateral is a

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A quadrilateral has three acute angles, each measuring 75°. Find the measure of the fourth angle.

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In figure, if segment PR=segment PQ, show that segmenet PS>segment PQ.

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