Missing Angle on the Trapezoid (Level 2)

This math topic focuses on finding the missing angles in trapezoids, reinforcing knowledge about the properties of trapezoid angles and how they sum up. Each question presents a different trapezoid with some angles provided, while others are to be calculated, based on the geometry principle that the sum of the interior angles of a quadrilateral (like a trapezoid) must be 360 degrees. This offers practice in both algebraic computation and geometric reasoning within the broader context of geometry concerning angles and transformations.

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 2)'. 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

a

118

b

110

c

106

d

126

e

122

f

90

2

Find the missing angle of the trapezoid

a

80

b

64

c

72

d

68

e

76

f

60

3

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

a

98

b

106

c

90

d

78

e

86

f

74

4

Find the missing angle of the trapezoid

a

82

b

54

c

62

d

58

e

70

f

86

5

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

a

133

b

121

c

117

d

109

e

141

f

125

6

Find the missing angle of the trapezoid

a

120

b

124

c

136

d

144

e

140

f

132

7

Find the missing angle of the trapezoid

a

80

b

92

c

72

d

84

e

60

f

96