Review Triangle Sum and Inequality Flashcardizz

Front

What is the Triangle Sum Theorem?

Back

The Triangle Sum Theorem states that the sum of the interior angles of a triangle is always 180 degrees.

Front

What is the Triangle Inequality Theorem?

Back

The Triangle Inequality Theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Front

Identify the shortest side in a triangle with sides 5, 7, and 10.

Back

5

Front

If two sides of a triangle are 8 and 15, what is a possible length for the third side?

Back

The third side must be less than 23 and greater than 7.

Front

What is the measure of an angle in a triangle if the other two angles are 50° and 70°?

Back

60°

Front

Can a triangle have sides measuring 2, 3, and 6?

Back

No, because 2 + 3 is not greater than 6.

Front

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

Back

It is a right triangle.

Front

What is the relationship between the angles in an isosceles triangle?

Back

In an isosceles triangle, the angles opposite the equal sides are equal.

Front

If the angles of a triangle are in the ratio 2:3:4, what are the measures of the angles?

Back

The angles are 40°, 60°, and 80°.

Front

What is the maximum length of a side in a triangle with sides measuring 7 and 10?

Back

The maximum length is less than 17.