# Triangle & Its Properties

Q.1: Write the six elements i.e. sides and angles of triangle PQR.

Q.2: An exterior angle of an triangle is of measure 80 ֯, and one of its interior opposite angle is of measure 55 ֯. Find the measure of the other interior opposite angle.

Q.3: The two interior opposite angles of an exterior angle of a triangle are 46 ֯ and 83 ֯. Then find the measure of the exterior angle.

Q.4: Two angles of a triangle are 67 ֯  and 97 ֯. Find the third angle.

Q.5: Is it possible to draw a triangle having sides 10.5 cm, 5.5 cm and 4.6 cm?

Q.6: An exterior angle of an triangle is of measure 120 ֯, and one of its interior opposite angle is of measure 75 ֯. Find the measure of the other interior opposite angle.

Q.7: The two interior opposite angles of an exterior angle of a triangle are 35 ֯ and 65 ֯. Then find the measure of the exterior angle.

Q.8: Two angles of a triangle are 60 ֯  and 30 ֯. Find the third angle.

Q.9: The three angles of a triangle are in the ratio 3:2:4. Find the angles of the triangle.

Q.10: The lengths of two sides of a triangle are 6 cm and 8 cm. Between which two numbers can length of the third side fall?