Find the missing angle

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees.

Front

Can a triangle be formed with side lengths 6cm, 5cm, and 8cm?

Back

True.

Front

What is the value of angle ECF if the options are 60, 90, 97, 35?

Back

97.

Front

If one angle of a triangle is 90 degrees, what type of triangle is it?

Back

Right triangle.

Front

What is the value of 'a' if the options are 75°, 65°, 55°, 85°?

Back

75°.

Front

If two angles of a triangle are 50° and 60°, what is the measure of the third angle?

Back

70°.

Front

What is the relationship between the angles in a triangle?

Back

The sum of the angles is always 180 degrees.

Front

If one angle of a triangle is 30°, what is the maximum possible value of the other angle?

Back

150°.

Front

What is the definition of an acute triangle?

Back

A triangle where all angles are less than 90 degrees.

Front

What is the definition of an obtuse triangle?

Back

A triangle with one angle greater than 90 degrees.