Lines
Polygons
Formulas
Triangles
Angles
100

Part of a line named by two end points

What is a line segment?

100

A four-sided polygon

What is a quadrilateral?

100

A = lw

What is the formula for area of a rectangle?

100

A triangle with all sides congruent

What is an equilateral triangle?

100

An angle that is less than 90°

What is an acute angle?

200

A line with a starting point but no ending point

What is a ray?

200

A polygon with five sides

What is a pentagon?

200

A = s2

What is the formula for area of a square?

200

A triangle with 2 congruent sides

What is an isosceles triangle?

200

An angle that is greater than 90°, but less then 180o

What is an obtuse angle?

300

An exact location

What is a point?

300

A four-sided polygon with all sides and angles equal

What is a square?

300

A = bh

What is the formula for area of a parallelogram?

300

A triangle with no congruent sides

What is a scalene triangle?

300

An angle that is exactly 90°

What is a right angle?

400

Lines that cross at 90°

What are perpendicular lines?

400

A polygon with six sides

What is a hexagon?

400

V = lwh

What is the formula for volume of a rectangular prism?

400

A triangle where all sides are less than 90o

What is an acute triangle?

400

An angle that is 180o

What is a straight angle?

500

Lines that never cross and remain the same distance apart

What are parallel lines?

500

A quadrilateral with only one set of parallel lines

What is a trapezoid?

500

A = 1/2bh

What is the formula for area of a triangle?

500

A triangle where one angle is 90o

What is a right triangle?

500

When 2 angles are exactly the same

What are congruent angles?

500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500