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Alla [95]
2 years ago
14

HELP WITH GEO 50 POINTS explain it in simple terms pls

Mathematics
1 answer:
Lady bird [3.3K]2 years ago
4 0

Answer:

see explanation

Step-by-step explanation:

The missing angle is 45°, thus the right triangle is isosceles.

Then the 2 sides y and 7 are congruent.

Hence y = 7

Using Pythagoras' identity to calculate x

x² = 7² + 7² = 49 + 49 = 98

Take the square root of both sides

x = \sqrt{98} = \sqrt{49(2)} = 7\sqrt{2} ≈ 10

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