Apply angle properties to find the measure of the missing angle in each

figure. °

x = 27°Isosceles Triangle Theorem

Round 1

x = 123°linear pair

x = 41°vertical angle

x = 40°same side

exterior angles

x = 41°complementary

x = 68.5°Isosceles Triangle Theorem

x = 61°same side interior angles

Round 2

x = 60°equiangular

x = 121°vertical angle

x = 148°alternate interior angles

x = 135°alternate exterior angles

x = 48°Isosceles Triangle Theorem

x = 35°complementary

Round 3

x = 45°Isosceles Triangle

Theorem

x = 127°corresponding

angles

x = 74°Isosceles Triangle Theorem

x = 40°triangle angle sum

theorem

x = 40°Isosceles Triangle

Theorem

x = 93°linear pair

INDIVIDUAL SPEED TEST(1 MINUTE PER ITEM)

Round 4

No. 1

No. 2

No. 3

No. 4

No. 5

No. 6

No. 7

No. 8

No. 9

No. 10

Answers

x = 30°No. 1

60°

60° 60° 120°

30°

30°

x = 75°No. 2

45°

45°

60°

60°60°75°

x = 30°

No. 3

60°

60°

60° 60°

30°

x = 15°

No. 4

45°

45° 135°

15°

x = 36°No. 5

36°

108°72°72°

36°

x = 39.5°

No. 6

79°

79°

101°

39.5°

39.5°

x = 75°

No. 7

45°45°

45°

60°

60°60°60°

75°

x = 30°

No. 8

60°60°60°60°

30°

x = 75°

No. 9

45°45°

60°

60°60°60° 45°

75°

75° 30°

x = 30°

No. 10

60° 60°

60° 60°60°

60°120°30°

30°

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