Geometry Test

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

• 180

• 90

• 270

• 360

Which type of triangle has all sides of equal length?

• Scalene triangle

• Equilateral triangle

• Isosceles triangle

• Right triangle

What is the name of the line segment that connects a vertex of a triangle to the midpoint of the opposite side?

• angle bisector

• median

• altitude

• perpendicular bisector

What is the measure of each exterior angle of a triangle?

• 90 degrees

• 60 degrees

• 45 degrees

• 120 degrees

What is the name of the triangle that has one angle measuring more than 90 degrees?

• acute triangle

• right triangle

• equilateral triangle

• obtuse triangle

What is the relationship between the lengths of the sides in a right triangle?

• The lengths of the sides in a right triangle are related by the Law of Sines.

• The lengths of the sides in a right triangle are unrelated.

• The lengths of the sides in a right triangle are all equal.

• The lengths of the sides in a right triangle are related by the Pythagorean theorem.

What is the name of the triangle that has all angles measuring less than 90 degrees?

• acute triangle

• equilateral triangle

• obtuse triangle

• right triangle

What is the name of the triangle that has one angle measuring exactly 90 degrees?

• right triangle

• isosceles triangle

• obtuse triangle

• acute triangle

What is the name of the triangle that has two sides of equal length?

• isosceles triangle

• right triangle

• scalene triangle

• equilateral triangle

Mei draws three pairs of parallel lines that are each intersected by a third line. In each figure, she measures a pair of alternate interior angles.

What is a reasonable conjecture for Mei to make by recognizing a pattern and using inductive reasoning?

• 
  When a pair of parallel lines are intersected by a third line, the alternate interior angles are congruent.

• When a pair of parallel lines are intersected by a third line, the alternate interior angles are acute.

• When a pair of parallel lines are intersected by a third line, all of the angles formed are congruent.

• When a pair of parallel lines are intersected by a third line, all of the angles formed are obtuse.