Triangles Test Review

Front

What is the sum of all angles in a triangle?

Back

180 degrees.

Front

What type of triangle has two sides of equal length?

Back

Isosceles triangle.

Front

What is the value of x if the triangle's angles are 30, 60, and x degrees?

Back

x = 90 degrees.

Front

Identify a triangle with all sides of different lengths.

Back

Scalene triangle.

Front

What is the value of the missing angle if two angles are 50 and 60 degrees?

Back

Missing angle = 70 degrees.

Front

What type of triangle has a right angle?

Back

Right triangle.

Front

If one angle of a triangle is 90 degrees, what can you say about the other two angles?

Back

They must add up to 90 degrees.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is the value of x in a triangle with angles 40, 50, and x degrees?

Back

x = 90 degrees.

Front

What type of triangle has all sides of equal length?

Back

Equilateral triangle.