Hitunglah luas daerah yang diarsir berikut!!

B) L¹ = S × S

= 14 × 14 = 196 cm²

L² = 1/4 × π ×r²

= 1/4 × 22/7 × 14 × 14

= 154 cm²

L Arsiran = L¹ – L²

= 196 – 154 = 42 cm²

C) L¹ = 1/2 × π × r²

= 1/2 × 3,14 × 8 × 8

= 100,48 cm²

L² = 1/2 × π × r²

= 1/2 × 3,14 × 4 × 4

= 25,12 cm²

L Arsiran = L¹ – L² + L²

= 100,48 – 25,12 + 25,12

= 100,48 cm²