angles

Question 1

acute angles

Answer 1

less than 90 degrees

Question 2

right angle

Answer 2

exactly 90 degrees

Question 3

obtuse angle

Answer 3

more than 90 degrees, less than 180

Question 4

reflex angle

Answer 4

more than 180, less than 360

Question 5

angles on a straight line

Answer 5

add up to 180

Question 6

angles on a point

Answer 6

add up to 360

Question 7

angles vertical opposite each other (whe to lines cross)

Answer 7

equal

Question 8

angles vertical opposite each other (whe to lines cross)

Answer 8

equal

Question 9

alternate angles

Answer 9

are angles that occur on opposite sides of the transversal line and have the same size (transversal line is a Line that goes through two horizontal lines at the same point) (z shape)

Question 10

co interior (allied) angles

Answer 10

Co-interior angles occur in between two parallel lines when they are intersected by a transversal. The two angles that occur on the same side of the transversal always add up to 180. c shape

Question 11

corresponding angles

Answer 11

Corresponding angles are angles that occur on the same side of the transversal line, separated by parallel line and are equal in size. f shape

Question 12

angles in parallelogram

Answer 12

due to parallel lines, angles on same side add up to 180 since cointerior

Question 13

exterior angle of triangle

Answer 13

a+b (top angle plus base triangl) is equal to exterior angle of c