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Andrew [12]
3 years ago
12

Im new someone please help​

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
6 0

Angle 3 and 4 are supplementary angles and create a straight line.

This means when added together they need to equal 180 degrees.

Angle 3 = 180 - angle 4

Angle 3 = 180-40 = 140 degrees.

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Using Pythagoras Theorem:

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