" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
5x + (x+26) + (3x+19) = 180
5x + x + 3x + 26 + 19 = 180
9x + 45 = 180
9x = 180 - 45
9x = 135
x = 135 : 9
x = 15
jadi 5x = 5 x 15 = 75 derajat
x+26 = 15 + 26 = 41 derajat
3x + 19 = (3x15) + 19 = 45 + 19 = 64 derajat
9x + 45 = 180
9x = 180 - 45
9x = 135
x = 135 : 9
x = 15
Dengan demikian besar masing - masing sudutnya adalah:
5x = 5(15) = 75 derajat
x + 26 = 15 + 26 = 41 derajat
3x + 19 = 3(15) + 19 = 45 + 19 = 64 derajat
Karena semua sudutnya kurang dari 90 derajat, maka segitiga tersebut termasuk jenis segitiga lancip