1.)Pelurus (180°)
Maka
a. 180-10=170°
b. 180-85=95°
c. 180-100=80°
d. 180-137=43°
e. 180-153=27°
f. 180-166=14°
.
2.)Penyiku(90°)
a. 90-10=80°
b. 90-28=62°
c. 90-45=45°
d. 90-63=27°
e. 90-87=3°
f. 90-75=15°
3.)
a. 180=2a+a
a=180/3
a=60°
90=b+37
b=90-37
b=53°
3c=180°
c=180/3
c=60°
270°=e+162+45
270=207+e
e=63°
360°=6f
f=360/f
f=60°
4.)
a.)90°=2x+3x+x
90°=6x
x=15°
b.)90°=6x+14x
90°=20x
x=4,5°
c.)90°=2x+5x+2x
90°=9x
x=10°
d.)90°=45x
x=2°
Semoga bermanfaat
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Jawaban:
1.)Pelurus (180°)
Maka
a. 180-10=170°
b. 180-85=95°
c. 180-100=80°
d. 180-137=43°
e. 180-153=27°
f. 180-166=14°
.
2.)Penyiku(90°)
a. 90-10=80°
b. 90-28=62°
c. 90-45=45°
d. 90-63=27°
e. 90-87=3°
f. 90-75=15°
.
3.)
a. 180=2a+a
a=180/3
a=60°
.
90=b+37
b=90-37
b=53°
.
3c=180°
c=180/3
c=60°
.
270°=e+162+45
270=207+e
e=63°
.
360°=6f
f=360/f
f=60°
.
4.)
a.)90°=2x+3x+x
90°=6x
x=15°
b.)90°=6x+14x
90°=20x
x=4,5°
c.)90°=2x+5x+2x
90°=9x
x=10°
d.)90°=45x
x=2°
Semoga bermanfaat