Question

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Answer 1

1. 120

2. 54

3. 64

Explanation:

1.

30 + 30 = 60

180-60 = 120

2.

104 + 22 = 126

180 - 126 = 54

3.

180 - 154 = 26

26 + 90 = 116

180 - 116 = 64

Answer 2

Figure 1: x = 120°

Figure 2: x = 54°

Figure 3: x = 64°

Explanation:

Every triangles interior angles will add up to 180°

Figure 1: 30 + 30 + x = 180

60 + x = 180

x = 120

Figure 2: 104 + 22 + x = 180

126 + x = 180

x = 54

Figure 3:

part 1: 154 + z = 180

z = 26

part 2: 90 + 26 + x = 180

116 + x = 180

x = 64