Question

pls help me with this ​

Answer 1

Answer:

it's 45°.......

Step-by-step explanation:

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Answer 2

Answer:

in ∆ABC

by Pythagoras thm

AB²+BC²=AC²

dividing both sides by AC²

AB²+BC²/AC²=AC²/AC²

AB²/AC²+BC²/AC²=1

sin²Ø+cos²Ø=1

Step-by-step explanation:

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