Geometry

Question 1

point

Answer 1

precise location in the plane

Question 2

line

Answer 2

straight path with no thickness that extends in both directions without end

Question 3

right angle

Answer 3

angle formed by perpendicular lines, measuring 90°

Question 4

vertex

Answer 4

a point, often used to refer to the point where two lines meet, such as in an angle or the
corner of a triangle

Question 5

Parallel

Answer 5

two lines in a plane that do not intersect

Question 6

perpendicular

Answer 6

Two lines are perpendicular if they intersect, and any of the angles formed between
the lines is a 90° angle,

Question 7

Intersecting lines

Answer 7

lines that contain at least one point in common

Question 8

Isosceles triangle

Answer 8

triangle with at least two equal sides

Question 9

Length of an arc

Answer 9

circular distance around the arc

Question 10

Obtuse angle

Answer 10

angle with a measure greater than 90°, but less than 180°

Question 11

Acute angle

Answer 11

angle with a measure of less than 90°

Question 12

Angle

Answer 12

union of two different rays sharing a common vertex,

Question 13

Parallelogram

Answer 13

quadrilateral with two pairs of parallel sides

Question 14

Quadrilateral

Answer 14

polygon with four sides

Question 15

Rhombus

Answer 15

quadrilateral with all sides of equal length

Question 16

Square

Answer 16

rectangle with all sides of equal length

Question 17

Trapezoid

Answer 17

quadrilateral with at least one pair of parallel sides

Question 18

Rectangle

Answer 18

quadrilateral with four right angles

Question 19

Polygon

Answer 19

closed two-dimensional figure with straight sides