16-30 Math Vocab

Question 1

Angle whose measure is 180°

Answer 1

Straight angle

Question 2

Angles that have the same measure

Answer 2

Congruent angles

Question 3

Ray that divides an angle into two congruent adjacent angles

Answer 3

Angle bisector

Question 4

Figure formed by three segments joining three noncollinear points. Each of the three points is a vertex of the ______ and the segments are the sides

Answer 4

Triangle

Question 5

Triangle that has all angles under 90°

Answer 5

Acute triangle

Question 6

Triangle with an angle measure of 90°

Answer 6

Right triangle

Question 7

Triangle with an angle greater than 90° but less than 180°

Answer 7

Obtuse triangle

Question 8

Triangle with all angles congruent

Answer 8

Equiangular triangle

Question 9

Triangle with no sides congruent

Answer 9

Scalene triangle

Question 10

Triangle with at least two sides congruent

Answer 10

Isosceles triangle

Question 11

Triangle with all sides congruent

Answer 11

Equilateral triangle

Question 12

To coplanar angles with the common vertex and a common side between them

Answer 12

Adjacent angles

Question 13

The nonadjacent angles formed by two intersecting lines

Answer 13

Vertical angles

Question 14

Two angles whose sum is 90°

Answer 14

Complementary angles

Question 15

Angle whose measure is greater than 90° but less than 180°

Answer 15

Obtuse angle