Penjelasan dengan langkah-langkah:
1 lingkaran = 360°
90°/360° = 1/4 lingkaran
r = 1/2(40) = 20 cm
L = 1/4 × π × r²
L = 1/4 × 3,14 × 20²
L = 1/4 × 3,14 × 400
L = 1/4 × 1.256
L = 314 cm²
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Penjelasan dengan langkah-langkah:
1 lingkaran = 360°
90°/360° = 1/4 lingkaran
r = 1/2(40) = 20 cm
L = 1/4 × π × r²
L = 1/4 × 3,14 × 20²
L = 1/4 × 3,14 × 400
L = 1/4 × 1.256
L = 314 cm²