Lines & Angles

Question 1

Secants

Answer 1

Two lines intersecting

Question 2

Bisector

Answer 2

Line intersects another exactly in the middle

Question 3

Parallel Lines

Answer 3

Two or more lines which are the same distance apart

Question 4

Perpendicular lines

Answer 4

Adds up to 90 degrees

Question 5

Acute Angle

Answer 5

Greater then 0 but smaller then 90

Question 6

Right Angle

Answer 6

Equal to 90

Question 7

Obtuse Angle

Answer 7

Greater then 90 but smaller then 180

Question 8

Straight Angle

Answer 8

Equal to 180

Question 9

Reflex Angle

Answer 9

Greater then 180 but smaller then 360

Question 10

Revolution

Answer 10

Equal to 360

Question 11

Adjacent Angles

Answer 11

Common vertex, two angles on either side of the arm

Question 12

Complementary Angles

Answer 12

Sum of 90 degrees

Question 13

Supplementary Angles

Answer 13

Sum of 180

Question 14

Straight Lines

Answer 14

Straight line is 180 degrees

Question 15

Vertically opposite Angles

Answer 15

Two lines intersect each other, the vertically opposite angles are equal in size

Question 16

Angles around a point / Revolution

Answer 16

Sum of all the Angles = 360 degrees

Question 17

Corresponding Angles

Answer 17

Form an F shape

Question 18

Alternate Angles

Answer 18

Form a Z shape

Question 19

Co-interior Angles

Answer 19

Form a U

Question 20

Perpendicular Lines

Answer 20

Make 90 degree Angles where they intersect

Question 21

Parallel lines

Answer 21

Same distance across. Will never intersect

Question 22

Bisector

Answer 22

Intersects another line exactly in the middle

Question 23

Isosceles triangle

Answer 23

Two of the three sides are of equal length

Question 24

Equilateral triangle

Answer 24

All Angles = 60, all side lengths are equal

Question 25

Right angled triangle

Answer 25

One Angle = 90

Question 26

Scalene / irregular triangle

Answer 26

Three unequal sides

Question 27

Corresponding Angles

Answer 27

F-rule, inside Angles of f shape will be equal. Can only be between parallel lines

Question 28

Alternate Angles

Answer 28

Z-rule. Opposing Angles of inside corners of z shape are equal. Can only be between 2 parallel lines

Question 29

Co-interior Angles

Answer 29

U-rule. Both Angles inside the u-shape must add up to 180. Can only be between two parallel lines

Question 30

Exterior Angle of a triangle

Answer 30

Is equal to the sum of the two opposing interior Angles of the triangle