Triangles
Quadrilaterals
Angles
Lines
Polygons
100

The name of a triangle with three acute angles.

What is an acute triangle?

100

The name of a quadrilateral with two pairs of parallel sides.

What is a parallelogram?

100

The classification of an angle that measures exactly 90 degrees.

What is a right angle?

100

The term that means two lines cross.

What are intersecting lines?

100

The name of a three-sided polygon.

What is a triangle?

200

The name of a triangle with one obtuse angle and two acute angles.

What is an obtuse triangle?

200

The name of a quadrilateral with four congruent sides.

What is a rhombus?

200

The classification of an angle that measures 15 degrees.

What is an acute angle?

200

The term that means two lines, rays, or line segments intersect at 90 degrees.

What is perpendicular?

200

The name of a four-sided polygon.

What is a quadrilateral?

300

The name of a triangle with one angle measuring 90 degrees and two acute angles.

What is a right triangle?

300

The name of a quadrilateral with four right angles.

What is a rectangle?

300

The classification of an angle that measures 125 degrees.

What is an obtuse angle?

300

The term that two lines, rays, or line segments in the same plane will never cross.

What is parallel?

300

The name of an eight-sided polygon.

What is an octogon?

400

The name of a triangle with three congruent sides.

What is an equilateral triangle?

400

The name of a rectangle that is also a rhombus.

What is a square?

400

The classification of a pair of angles that add together to 90 degreees.

What are complementary angles?

400
The term for a figure that does not go on forever in either direction. It ends in a point on both ends, making just a part of a line.

What is a line segment?

400

The name of a polygon whose sides are all the same length (congruent).

What is equilateral?

500

The name of a triangle with two congruent sides.

What is an isosceles triangle?

500
The name of a quadrilateral that has one pair of parallel sides.

What is a trapezoid?

500

The name of a pair of angles that add together to 180 degrees, or a straight angle.

What are supplementary angles?

500

The term that describes a figure that ends in a point at one end but continues forever in the other direction.

What is a ray?

500

The term that describes a polygon whose angles are all congruent.

What is equiangular?