Missing Angle on the Trapezoid (Level 1)

This math topic focuses on finding the missing angles in trapezoids, with the premise that the sum of the interior angles in a trapezoid is always 360 degrees. It covers the application of this geometric principle through seven distinct problems, each requiring the calculation of multiple missing angles. This is part of an introductory unit on geometry dealing with angles and transformations, aimed at providing foundational skills in manipulating and understanding angles within different shapes.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

Missing Angle on the Trapezoid Worksheet

Math worksheet on 'Missing Angle on the Trapezoid (Level 1)'. Part of a broader unit on 'Geometry - Angles and Transformations - Intro' Learn online: app.mobius.academy/math/units/geometry_angles_and_transformations/

1

Find the missing angle of the trapezoid given that the interior angles must add up to 360°

a

90

b

94

c

110

d

102

e

114

f

118

2

Find the missing angle of the trapezoid given that the interior angles must add up to 360°

a

22

b

14

c

38

d

30

e

18

f

10

3

Find the missing angle of the trapezoid given that the interior angles must add up to 360°

a

136

b

132

c

100

d

112

e

120

f

104

4

Find the missing angle of the trapezoid given that the interior angles must add up to 360°

a

68

b

84

c

80

d

96

e

72

f

60

5

Find the missing angle of the trapezoid given that the interior angles must add up to 360°

a

32

b

40

c

44

d

36

e

56

f

48

6

Find the missing angle of the trapezoid given that the interior angles must add up to 360°

a

66

b

86

c

70

d

50

e

62

f

78

7

Find the missing angle of the trapezoid given that the interior angles must add up to 360°

a

86

b

50

c

70

d

82

e

58

f

78