Answer:
B
Explanation:
The Pythagorean theorem is
a^2 + b^2 = c^2
A
15^2 + 15^2 = 30^2
225 + 225 = 900
450 = 900 ❌
15^2 + 36^2 = 39^2
225 + 1292 = 1521
1521 = 1521 ✅
whose angle makes 90°
hope this helps
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