Triangles and its properties

How many elements are there in a triangle?

• 3

• 6

• 4

• All of these

How many medians can a triangle have?

• 1

• 2

• 3

• 4

The total measure of the three angles of a triangle is

• 360

• 90

• 180

• none of these

Which of the following statements is true?

• A triangle can have two right angles

• A triangle can have two obtuse angles

• A triangle can have two acute angles

• A triangle can have all the three angles less than 60°

Two angles of a triangle measure 90° and 30°. The measure of the third angle is

• 90

• 30

• 60

• 120

n the following figure, the side BC of ∆ ABC is extended up to the point D. If ∠A = 55° and ∠B = 60°, then the measure of ∠ACD is

• 120

• 110

• 115

• 125

In the following figure, the measure of ∠A is

• 30

• 45

• 90

• 60

In the following figure, find x and y

• x=70,y=40

• x=40,y=70

• x= 140,y=40

• x=40,y=140

Find the value of the unknown interior angle x in the following figure:

• 90

• 40

• 130

• 60

Find the value of unknown x in the following figure

• 90

• 180

• 6

• 15