Jawab:
Sudut garis lurus yaitu 180 derajat.
A1 + B4 merupakan garis lurus.
Perbandingan A1 : B4 = 1 : 5
A1 + B4 = 180 derajat.
A1 + B4 = 6.
A1 = 1 * (180 / 6) = 30 derajat
B4 = 5 * (180 / 6) = 150 derajat
a) besar sudut B3 = 180 - B4 = 180 - 150 = 30 derajat
b) A4 = 180 - A1 = 180 - 30 = 150
A4 = (2y + 10)
150 = 2y + 10
150 - 10 = 2y + 10 - 10
140 = 2y
y = 70 derajat
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Jawab:
Sudut garis lurus yaitu 180 derajat.
A1 + B4 merupakan garis lurus.
Perbandingan A1 : B4 = 1 : 5
A1 + B4 = 180 derajat.
A1 + B4 = 6.
A1 = 1 * (180 / 6) = 30 derajat
B4 = 5 * (180 / 6) = 150 derajat
a) besar sudut B3 = 180 - B4 = 180 - 150 = 30 derajat
b) A4 = 180 - A1 = 180 - 30 = 150
A4 = (2y + 10)
150 = 2y + 10
150 - 10 = 2y + 10 - 10
140 = 2y
y = 70 derajat