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Alina [70]
3 years ago
13

What is the value of x​

Mathematics
2 answers:
exis [7]3 years ago
8 0

Answer:

x = 70

Step-by-step explanation:

x = 180 - (30 + 80)

x = 180 - 110

x = 70

to be sure

70 + 80 + 30 { = }^{?} 180

100 + 80 { = }^{?} 180

180 = 180

aleksley [76]3 years ago
7 0

Answer:

70°

Step-by-step explanation:

All triangles' angles are added up to 180°

30 + 80 + x = 180

110 + x = 180

x = 180 - 110

x = 70

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