Question

Tolong di jawab ya...beserta caranya...thanks ;)

Answer 1

I 28x14-22/7x7x7=238
ii 1/4x314/100x10x10=78,5
iii 21x21+1/2x22/7x10,5x10,5= 173,25
iv 1/2x314/100x10x10= 157

Answer 2

3.keiling ingkaran=2πr
=2×3,14×3
=18,84
18,84cm×5=94,2
jadi,panjang tai yang diperukan= 94,2cm

4.(i)=(28×2)+(14×2)
=56+28
=84cm-(×14
=84-44
=40cm

(ii)× 2×3,14×10
=×2×31,4
=