" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1386 cm²= 22/7 x r²
1386cm² x 7 = 22r²
9702cm² = 22r²
9702cm²/22 = r²
441cm² = r²
= r
r =21
s =
=
=
35 cm
luas permukaan: r (r+s)
= 22/7 x 21cm (21cm+35cm)
=66cm x 56cm
=3696cm²