Jawaban:
A.L.1=s×s
=21×21
=441dm²
L.2=π×r×r
=22/7×10,5×10,5
=22×15,75
=346,5dm²
L. yang diarsir =441-346,5=94,5dm²
B.L.1=π×r×r
=346,5cm²
=3,14×5×5
=3,14×25
=78,5cm²
L. yang diarsir = 346,5-78,5=268cm²
C.L. yang diarsir = luas persegi
=s×s
=20×20
=400cm²
D.L.1=s²
=20²
L.2=½×a×t
=½×20×8
=10×8
=80cm²
L.3=½×π×r²
=½×3,14×100
=½×314
=157cm²
L. yang diarsir = 400-(80+157)
=400-237
=163cm²
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Jawaban:
A.L.1=s×s
=21×21
=441dm²
L.2=π×r×r
=22/7×10,5×10,5
=22×15,75
=346,5dm²
L. yang diarsir =441-346,5=94,5dm²
B.L.1=π×r×r
=22/7×10,5×10,5
=22×15,75
=346,5cm²
L.2=π×r×r
=3,14×5×5
=3,14×25
=78,5cm²
L. yang diarsir = 346,5-78,5=268cm²
C.L. yang diarsir = luas persegi
=s×s
=20×20
=400cm²
D.L.1=s²
=20²
=400cm²
L.2=½×a×t
=½×20×8
=10×8
=80cm²
L.3=½×π×r²
=½×3,14×100
=½×314
=157cm²
L. yang diarsir = 400-(80+157)
=400-237
=163cm²