Respuesta :

ccfrancis06

Answer:

B. 45

Step-by-step explanation:

45 - 45 -90 triangle

sinA = sinB

45 = 45

45 + 45

= 90

Pls brainliest :))))

JekoesHuang

Answer:

B

Step-by-step explanation:

∵A＝sinB

∴∠A＝∠B

∵ΔABC is RTΔ

∴∠C＝90°

∴∠A＋∠B＝180°－90°＝90°

∴∠A＝∠B＝45°

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