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Valentin [98]
3 years ago
9

Find the value of x in the triangle

Mathematics
2 answers:
Serggg [28]3 years ago
8 0

Answer:

72⁰

Step-by-step explanation:

By angle sum property:

x + 77 + 31 = 180

x = 180 - 108

x = 72⁰

madam [21]3 years ago
7 0

Answer:

x =72

Step-by-step explanation:

The sum of the angles of a triangle is 180 degrees

x+77+31 = 180

Combine like terms

x + 108 = 180

Subtract 108 from each side

x+108-108 = 180-108

x =72

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