Сумма смежных углов = 180°
Пусть CBD = x+70. ABC = x, тогда x+x+70=180, 2x=110, x=55
CBD = 70+55 = 125, ABC = 55
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Сумма смежных углов = 180°
Пусть CBD = x+70. ABC = x, тогда x+x+70=180, 2x=110, x=55
CBD = 70+55 = 125, ABC = 55