Question

Bantuin yyy ... jawabin soal no 5 yyy.. makasih...

Answer 1

3a+a=180 
4a=180
a=180/4
a=45 Derajat
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b+b+b=180
3b=180
b=180/3
b=60 Derajat
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3c+45+30=180
3c=180-45-30
3c=105
c  =105/3
c=35 derajat
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4d+60+d=180
5d=180-60
5d=120
d=120/5
d=24 derajat
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ABD=3a=3*45=135 Derajat
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DEG=2b=2*60=120 Derajat
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PQS=3c+45 = 3*35 +45=105+45=150 derajat
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KLN=4d+60= 4*24 + 96=96+60=156 derajat

Answer 2

A. Telah diketahui, bahwa sudut lusur besarnya 180°, sehingga :

3a + a = 180°
4a = 180°
a = 45°

b + b + b = 180°
3b = 180°
b = 60°

(3c + 45) + 30 = 180°
3c + 75 = 180°
3c = 105°
c = 35°

4d + 60 + d = 180°
5d + 60 = 180°
5d = 120°
d = 24°

b.
ABD = 3a
= 3(45)
= 135°

DEG = b + b
= 2b
= 2(60)
= 120°

PQS = 3c + 45
= 3(35) + 45
= 105 + 45
= 150°

KLN = 4d + 60
= 4(24) + 60
= 96 + 60
= 156°

Semoga Membantu