Math - Geometry 1

perpendicular

The type of intersecting lines that form four right angles

Scaling

The type of triangle with no congruent angles

132

This is the measure of the last angle of a quadrilateral if the other angles measure 58, 58, and 112 degrees

Acute

An angle with a measure of less than 90 degrees

Parallel

Lines that lie in the same plane, but do not meet

Diameter

Pi is multiplied by this when finding the circumference of a circle

13

The complement of a 77 degree angle

Tangent

The name given to a line that just touches or meets a circle at any one point

Quadrilateral

The name given to any polygon with four sides

Vertex

The name given to the point where two rays meet to form an angle

Hypotenuse

The name given to the side opposite to the right angle in a triangle

270

The number of degrees in 3/4 of a complete turn

180

The number of degrees in a semicircle

45

The number of degrees in the third angle if the other two angles measure 56 degrees and 79 degrees

720

The number of degrees in two complete revolutions

Seven

The number of sides of a heptagon

Nine

The number of sides of a nonagon

Eight

The number of sides on an octagon

360

The sum of all the interior angles of a rectangle

124

The supplement to a 56 degree angle