Properties of triangles

Solve for x.

• 16
• 11
• 50
• 6

Tags

CCSS.8.G.A.5

Find the measure of the indicated angle. 

• 89
• 211
• 119
• 81

Tags

CCSS.8.G.A.5

How many altitudes can a triangle have?

• one

• two

• three

• four

An _____ angle of a triangle is equal to the sum of its interior opposite angles.

• Exterior angle

• Interior angle

• Adjacent angle

Tags

CCSS.8.G.A.5

The sum of the lengths of any two sides of a triangle is ____ than the third side.

• greater than

• less than

• equal to

In a right angled triangle, the side opposite to the right angle is called the _____

• base

• hypotenuse

• perpendicular

The perpendicular line segment from a vertex of a triangle to its opposite side is called an ____ of the triangle.

• altitude

• median

• base

Which set of side lengths could NOT be used to form a triangle?

• 2 cm, 6 cm, 7 cm

• 7 cm, 15 cm, 8 cm

• 5 cm, 5 cm, 5 cm

• 8 cm, 9 cm, 6 cm

Tags

CCSS.7.G.A.2

An isosceles right triangle has a 90° angle and two equal acute angles. What is the measure of each of the acute angles?

• 35°

• 40°

• 45°

• 50°

Tags

CCSS.8.G.A.5

Find the value of x.

• x=6

• x= -6

• x= -8

• x =8

Tags

CCSS.8.G.A.5