Class -9 lines and angles,triangle

Sum of the three angles Of triangle is

• 270 degree

• 180 degree

• 360 degree

• None

Which of the following is not

Congruence rule of triangle

• ASA

• RHS

• SSS

• SSA

Two angles of a triangle are 70degree, 80degree find third angle is

• 50

• 60

• 30

• None

In triangle ABC AB=AC, If angle B=70 find angleA

• 40

• 50

• 60

• 70

If an angle is half of its complementary , find the angle

• 60 degree

• 30 degree

• 40 degree

• None

2x and 3x are linear pair angles find smallest angle

• 72

• 108

• 36

• None

lf the angles of a triangle are in the ratio 2: 3:4 then the largest angles is

• 40degree

• 60 degree

• 80 degree

• 90

If the angles forming linear pair are in the ratio 4:6 then measure of obtuse angle

• 36 degree

• 72 degree

• 108 degree

• None

Two parallel lines intersect at:

• One point

• Two points

• Three points

• None of these

A straight angle is equal to:

• 0 degree

• 90degree

• 180 degree

• 360degree