shri1301
19.03.2020 •
Mathematics
986,089(4082-15) answer for Brainliest
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Ответ:
a) 112°
b) 81°
c) 31°
Step-by-step explanation:
ABD = 180 - CBD
CBD = ABD
(Corresponding angles)
ABD = 180 - 68 = 112°
AED = BDC
(Corresponding angles)
BDC = 180 - 99 = 81°
AED = 81°
ACE = 180 - 68 - 81 = 31°
(Total angle in a triangle is 180°)