Polygons

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Grade 8

Polygons, Quadrilaterals and Parallelograms

Practice Questions

Q1 Find the measure of exterior angle of a regular polygon of

a)8 sides b) 5 sides c) 12 sides

Q2 Is it possible to have a regular polygon each of whose exterior angles is 25 degree?

Q3 What is the minimum interior angle possible for a regular polygon?

Q4 Find the measure of each interior angle of a regular polygon.
 a)Triangle b) Polygon with 13 sides c) Polygon with 11 sides

Q5 What is the sum of all interior angles of a polygon of following sides?
a) 5 sides b) 9 sides c) k+1 sides

Q6 What is the number of diagonals in the following..?

a)Octagon b) Decagon c) Polygon with 14 sides

Q7 Find the number of sides of a regular polygon whose each exterior angle measures 60 degree.

Q8 Find the measure of exterior and interior angle of octagon.

Q9 The four angles of Quadrilateral are in ratio of 2:3:5:8. Find each angle of Quadrilateral.

Q10 The measure of two angles of Quadrilateral are 110 and 70 degree. Also the other two angles are equal. Find the measure of the equal angles.

Q 11 Prove that the sum of  the angles of a quadrilateral is 360 degree.

Q12 Three angles of Quadrilateral are equal and the fourth angle is of 60 degrees. Find the measure of three remaining  angles.

Q13 ABCD is a parallelogram in which  = 100 degree. Find the measure of each of the remaining  angles( )

Q14 If one adjacent angle is half the other. Find the measure of all the angles of a parallelogram.

Q15 If the two adjacent angles of Parallelogram are equal.  What is the measure of each of these angles.

Q16 The sum of two opposite angles of a parallelogram is 120 degrees. Find the measure of each of its angle.

Q17 Two adjacent angles of a Parallelogram are (2x+8) and (4x+4). Find the measure of each angle .

Q18 The length of diagonals of Rhombus are 6cm and 8 cm respectively. Find the length of each side.