" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
luas segitiga 1:
t = √20²+(42/2)²
= √400 + 441
= √841 = 29
L = a × t
= 30 × 29 = 870cm²
luas segitiga 2:
t = √20²+(30/2)²
= √400 + 225
= √625 = 25
L = 42 × 25 = 1050 cm²
luas permukaan keseluruhannya jadi
1260 + 2(1050) + 2(870)
= 1260 + 2100 + 1740 = 5100
maaf kalo salah