" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Luas = a * b sin C
Luas = 4 * 6 sin 150°
Luas = 12 cm²
(2).
s² = 2r² (1 - cos (2π/n))
10² = 2r² (1 - cos (2π/5))
r = √(10(5 + √5)) cm
luas segilima beraturan adalah
L = ½ r² n sin (2π/n)
L = ½ (√(10(5 + √5)))² (5) sin (2π/5)
L = 25 √(5(5 + 2√5))
L ≈ 172.04774 cm²
Semoga bermanfaat
Jadikan jawaban terbaik ya :D :)