" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
792 = 1/3 x 22/7 x r² x 21
2376 = 66 x r²
r² = 36
r = 6 cm
luas alas = πr²
= 3,14 x 6 x 6
= 113,04 cm²
garis pelukis (s)
s² = t² + r²
s² = 21² + 6²
s² = 441 + 36
s² = 477
s = 21,9 cm
luas selimut = πrs
= 3,14 x 6 x 21,9
= 412,596 cm²
Maaf kalau salah^^
792 × 3 × 7/22 × 21 = r^2
r^2 = 36
r = 6 cm
s^2 = 6^2 + 21^2
s^2 = 36 + 441
s^2 = 477
s = 21,84 cm
Luas alas = 3,14 × 6 × 6
= 113,04 cm^2
Luas selimut = 3,14 × 6 × 21,84
= 18,84 × 21,84
= 411,4656 cm^2