Chap. 6 - Geometrical Figures

Question 1

Two angles are complementary if…

Answer 1

…their sum is 90°

Question 2

Two angles are supplementary if…

Answer 2

…their sum is 180°

Question 3

vertically opposite angles are…

Answer 3

…equal

Question 4

Angle sum of a triangle is

Answer 4

180°

Question 5

cointerior angles…

Answer 5

add to 180°

Question 6

corresponding and alternate angles are…

Answer 6

…equal

Question 7

angle sum of polygons is given by…

Answer 7

180(n-2) (n is the number of sides in the polygon)

Question 8

Name all four congruent triangle tests.

Answer 8

SSS - side, side, side
SAS - side, angle, side
AAS - angle, angle, side
RHS - hypotenuse and second side

Question 9

Parallel symbol is…

Answer 9

||

Question 10

similarity symbol is…

Answer 10

|||

Question 11

scale factor is given by…

Answer 11

image length/original length
*lengths must be the same side of each respective triangle
*put the larger number on top for easier working

Question 12

Name the three similar triangle tests

Answer 12

SSS - matching sides are IN PROPORTION
Equiangular - all angles are matching
SAS - two matching sides and 1 included angle