" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
CO = √13² - (24/2)² = √169-144 = √25 = 5 cm
AO = √20² - (24/2)² = √400 - 144 = √256 = 16 cm
Diagonal AC = CO + AO = 5 + 16 = 21 cm
L = 21 x 24 / 2 = 252 cm² (c)
11. panjang CD = BC= √12²+(18/2)² = √144+81 = √225 = 15 cm
Panjang AB = AD = √(52-12)²+(18/2)² = √1600+81 = √1681 = 411 cm
Keling = 15+15+41+41 = 112 cm