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olya-2409 [2.1K]
2 years ago
13

Can someone please explain? :(

Mathematics
1 answer:
Travka [436]2 years ago
3 0

Look at the angles inside the triangle.

Two of them are equal !

That tells us that the sides opposite those angles are equal.

So  x² + 5 = 248 .

I'll bet you can take it from there and find the value of ' x '.  Right ?

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