4 years ago

What is the value of the angle ?

Mathematics

1 answer:

Ivan4 years ago

8 0

Answer:

47°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles

124° is an exterior angle , thus

77 + ? = 124 ( subtract 77 from both sides )

? = 47°

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Answer:

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