Question

VA ROG DIN TOT SUFLETUT MACAR UN EX DIN CELE MARCATE
DAU COROANA SI 70 P​

Answer 1

Răspuns:

Explicație pas cu pas:

ATENTIE - suma unghiurilor unui triunghi este 180°

1)

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b)

∡D+∡E+∡A=180°

35°43'+100°+∡A=180°

135°43'+∡A= 180

∡A= 180-135°43]

∡A= 44° 17'

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d)

∡M+∡N+∡P=180°

35°20'+70°15'+∡P= 180°

105°35'+∡P=180°

∡P=180-105°35'

∡P=74° 25'

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f)

∡M+∡K+∡K=180°

66°+2∡K=180°

2∡K=180-66

2∡K= 114°

∡K=114:2

∡K= 57°

∡F=57°

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h)

∡E+∡F+∡G=180

27+63+∡G=180

90+∡G=180°

∡G=180-90

∡G=90°

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4)

∡A+∡B+∡C=180°

2C+C=180-84

3C= 96

C=96:3

∡C= 32°

∡B= 32*2=64°

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5)

∡A+∡B+∡C=180°

∡A+∡B=180-35°30'

∡A+∡B= 144°30'

∡A+3A-15°30'=144°30'

4A=144°30°+15°30'

4A= 160°

∡A=40°

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6)

∡B= 3A-15°30'

∡B=120°-15°30'

∡B= 104°30'

∡B= 39°15' x3 - 15°30'

∡B= 117°45'- 15°30'

∡B= 102°15'

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6)

∡A= a

∡B=b

∡C=c

a+b+c=180°

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a)

a=b

c=2a

a+a+2a=180

4a= 180

a= 180:4

a= 45°

b=45

c= 2*45=90

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b)

a=2b

c= 3b+12

2b+b+3b+12=180

6b= 180-12

6b= 168

b= 168:6

b= 28°

a= 2*28=56

c= 96°

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c)

3c+3c+12+c= 180

7c= 180-12

7c= 168

c= 168:7

c= 24°

a=3*24=72

b=72+12

b=84