21).Base Surface Area = π×42
= 50.265482457437 cm²
Lateral Surface Area = π×4×√42 + 92
= 123.76439726549 cm²
Total Surface Area = 174.02987972293 cm²
22).Top Surface Area = π×122
= 452.38934211693 cm²
Bottom Surface Area = π×122
Lateral Surface Area = 2π×12×12
= 904.77868423386 cm²
Total Surface Area = 1809.5573684677 cm²
23).Surface Area = 4πr2
= 4×π×52
= 100π
= 314.15926535898 centimeters2
24).diko Alam toh
25).Surface Area = 2×(12×9 + 12×7 + 9×7) = 510cm²
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Answers & Comments
21).Base Surface Area = π×42
= 50.265482457437 cm²
Lateral Surface Area = π×4×√42 + 92
= 123.76439726549 cm²
Total Surface Area = 174.02987972293 cm²
22).Top Surface Area = π×122
= 452.38934211693 cm²
Bottom Surface Area = π×122
= 452.38934211693 cm²
Lateral Surface Area = 2π×12×12
= 904.77868423386 cm²
Total Surface Area = 1809.5573684677 cm²
23).Surface Area = 4πr2
= 4×π×52
= 100π
= 314.15926535898 centimeters2
24).diko Alam toh
25).Surface Area = 2×(12×9 + 12×7 + 9×7) = 510cm²