1. Missing Angles in Quadrilaterals - Worksheet
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Missing Angles in Quadrilaterals - Worksheet

2. Name the shape and calculate the missing angles. a
Angles in a quadrilateral total 360°.
125° 𝑥° a b
115°
90°
90°
100° 𝑥°
95°
90° 𝑥°
80°
100° b 𝑥°
2𝑥° c
110° 𝑦°
45° d 𝑥°
105°
85° 𝑥° c
35°
105° 𝑥° 𝑥°
103° f 𝑥° e
30°
112° e
67° d
3𝑥+25°
𝑥+15° g h
15°
2𝑥°
103°
3𝑥° 𝑥°
80° 𝑥° f
40° i 𝑧°
8 6 𝑥 𝑦°
135° 𝑥°
6 9 𝑥

3. 𝑥 = 90° 𝑥 = 80° 𝑥 = 85° 𝑥 = 60° 𝑥 = 125° 𝑥 = 110° 𝑦 = 70° 𝑥 = 35°
Name the shape and calculate the missing angles. a
Angles in a quadrilateral total 360°.
125° 𝑥° a b
115°
90°
90°
100° 𝑥°
𝑥 = 90°
95°
𝑥 = 80°
90° 𝑥°
80°
100° b
𝑥 = 85° 𝑥°
2𝑥° c
110° 𝑦°
45° d 𝑥°
𝑥 = 60°
𝑥 = 125°
𝑥 = 110°
𝑦 = 70°
105°
85° 𝑥° c
𝑥 = 35°
35°
105° 𝑥° 𝑥°
103° f 𝑥° e
𝑥 = 78°
𝑥 = 120°
30°
112° e
67° d
3𝑥+25°
𝑥+15°
𝑥 = 35° g h
15°
2𝑥°
103°
3𝑥° 𝑥°
80°
𝑥 = 77° 𝑥°
𝑥 = 50°
𝑥 = 90° f
40°
𝑥 = 45°
𝑦 = 45°
𝑧 = 135° i 𝑧°
8 6 𝑥
𝑥 = 40° 𝑦°
135° 𝑥°
6 9 𝑥