" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Maka Tinggi=8
Luas=30×8/2=120 cm²
= 20: 2
= 10
alas siku-siku = (21-9) : 2
= 12 : 2
= 6
tinggi² = 10² - 6²
tinggi² = 100-36
tinggi² = 84
tinggi = √84
tinggi = 8
luas = (a+b) x t : 2
= (21+9) x 8 : 2
= 30 x 8 : 2
= 30 x 4
= 120
semoga membantu