Lines and Angles
A 115° angle is a(n) _____ angle.
obtuse
Classify this pair of angles as complementary or supplementary: 25° and 65°
complementary
Classify the following triangle according to its angle measures: 50°, 40°, 90°
right triangle
A parallelogram has 2 pairs of opposite sides that are parallel. Their opposite sides and angles are ________.
A circle is named by its what?
center
Lines that never intersect are called _______ lines.
parallel
Classify this pair of angles as complementary or supplementary: 85° and 95°
supplementary
Classify the following triangle according to its angle measures: 110°, 35°, 35°
obtuse triangle
What is the sum of interior (inside) angles in all quadrilaterals?
360°
radius
Lines that intersect and form right angles are called ______ lines.
perpendicular
Classify this pair of angles as complementary or supplementary: 116° and 64°
supplementary
Classify the following triangle according to its side measures: 12 cm, 15 cm, 13 cm
scalene triangle
If three angles in a trapezoid are 104°, 80°, 80°, what is the missing angle measure?
96°
What is a line segment with endpoints on the circle?
chord
A 35° angle is a(n) _____ angle.
acute
What is the angle measure of the missing angle in the complementary angle pair if one angle is 18°?
72°
Classify the following triangle according to its side measures: 36 m, 36 m, 36 m
equilateral triangle
What is the difference in a parallelogram and a rhombus?
All the sides are congruent in a rhombus; opposite sides are congruent in a parallelogram.
What is a chord that passes through the center of the circle?
diameter
A 180° angle is a(n) _____ angle.
straight
What is the angle measure of the missing angle in the supplementary angle pair if one angle is 94°?
86°
Classify the following triangle according to its side measures: 5 ft, 3 ft, 5 ft
isosceles triangle
How many pairs of parallel lines does a trapezoid have?
at least one
What is an angle with its vertex at the center of the circle?
central angle