Base Angles Isosceles Triangle

What is the measure of angle 2?

• 50

• 65

• 115

Find the value of x.

• 1

• 4

• 5

• 8

Find x

• 10

• 32

• 116

• 16

Use the Isosceles Triangle Theorem to find the value of x.

• -7

• -8

• -12

• 6

In triangle ABC, if AB=BC and ∠B = 70°, ∠A will be:

• 70°

• 110°

• 55°

• 130°

The angles opposite to equal sides of a triangle are:

• Equal

• Unequal

• Supplementary angles

• Complementary angles

ABC is an isosceles triangle in which altitudes BE and CF are drawn to equal sides AC and AB respectively. Then:

• BE>CF

• BE<CF

• BE=CF

• None of the above

If ABC and DBC are two isosceles triangles on the same base BC. Then:

• ∠ABD = ∠ACD

• ∠ABD > ∠ACD

• ∠ABD < ∠ACD

• None of the above

If AD is an altitude of an isosceles triangle ABC in which AB = AC. Then:

• BD=CD

• BD>CD

• BD<CD

• None of the above

A triangle in which two sides are equal is called:

• Scalene triangle

• Equilateral triangle

• Isosceles triangle

• None of the above