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= 2 × phi × r^2 + 2 × phi × r × t
= 2 × 22/7 × 14 × 14 + 2 × 22/7 × 14 × 40
= 44 × 2 ×14 + 44 × 2 × 40
= 1232 + 3520
= 4752 cm^2
= 2 × 22/7 × 14 (14 + 40)
= 88 (54)
= 4.752 cm^