Question

Ex 11
Doar :a,b,c,d
♔dau coroana plus punte multe
ฅ^•ﻌ•^ฅ

Answer 1

Răspuns:

a) <AOD = 45°+37° = 82°

< DOB = 180°-82° = 98°

98°:2 = 49° <DOE = <EOB

b) <COA+<DOB = 20°+78° = 98°

<COE =<EOD = 180°-98° = 82°:2 = 41°

c) <AOD = <DOC = 35°•2 = 70°

<COE =<EOB = 180°-70° = 110°:2 = 55°

d) <AOC = <COD = 30°•2 = 60°

<AOD+<DOE = 60°+89° = 149°

<EOF = <FOB = 180°-149° = 31°:2 = 15°30'

EVERGREEN