发布网友
发布时间:2025-01-14 10:45
共2个回答
热心网友
时间:2025-01-16 13:47
∠ABC+2∠CBD=180°
∠CBD=75°
所以 ∠ABC= 180-150 = 30°
热心网友
时间:2025-01-16 13:43
∠ABC +2∠CBD = 180°
∠ABC = 30°
所以∠CBD = 75°