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3 years ago

A side of the triangle below has been extended to form an exterior angle of 72°. Find the value of xx

Mathematics

2 answers:

mafiozo [28]3 years ago

7 0

Answer:

x=52

Step-by-step explanation:

The exterior angle of the triangle is equal to the sum of the opposite interior angles

72 = 20+x

72-20 = 20+x-20

52 =x

frozen [14]3 years ago

5 0

x + 20 = 72

x + 20 - 20 = 72 - 20

x = 52

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