Question

dau coroane fac orice repede va roggggg

Answer 1

Răspuns:

Explicație pas cu pas:

4)

∡BOC=36°

∡AOD=36°

∡AOC= [ (360-(36+36)] :2= 288:2=144°

∡DOB=144°

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5)

2x+10= 85-x

2x+x= 85-10

3x= 75

x= 75:3

x=25°

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6)

∡MNC= 180-107= 73°

∡NMB= 180-52=128°

BCMN- trapez isoscel ( MN║BC)

∡ACB= 73°

∡ABC= 73°

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7)

106+72=180 (unghiuri suplementare)

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8)

∡AOB=35*2=70

∡BOC=75*2=150

3x+x+35=180

4x+35=180

4x=180-35

4x= 145

x= 145:4

x= 36° 15 '

∡AOD= 36° 15'

∡DOC= 36°15'*3=108°30'

Answer 2

Răspuns:

4.AOD=36. AOC=DOB =180-36=144.

[tex]5.2x + 10 = 85 - x 3x = 75......x =25

6,AMN=ABC=52

MNC+ACB=180. ACB=180-107=73

7, 106+72=178 trebuia să fie. 180

8,. AOE=35. x+3x=360-70-170=120

x=120:4=30

9 .????