1. For the cylinder with radius 10 and height 2:
- Surface area = 2πr² + 2πrh
- Surface area = 2π(10)² + 2π(10)(2)
- Surface area = 2π(100) + 2π(20)
- Surface area = 200π + 40π
- Surface area = 240π
2. For the cylinder with radius 3 and height 5:
- Surface area = 2πr² + 2πrh
- Surface area = 2π(3)² + 2π(3)(5)
- Surface area = 2π(9) + 2π(15)
- Surface area = 18π + 30π
- Surface area = 48π
3. For the cylinder with radius 7 and height 12:
- Surface area = 2πr² + 2πrh
- Surface area = 2π(7)² + 2π(7)(12)
- Surface area = 2π(49) + 2π(84)
- Surface area = 98π + 168π
- Surface area = 266π
4. For the cylinder with radius 2 and height 3:
- Surface area = 2πr² + 2πrh
- Surface area = 2π(2)² + 2π(2)(3)
- Surface area = 2π(4) + 2π(6)
- Surface area = 8π + 12π
- Surface area = 20π
5. For the cylinder with radius 8 and height 9:
- Surface area = 2πr² + 2πrh
- Surface area = 2π(8)² + 2π(8)(9)
- Surface area = 2π(64) + 2π(72)
- Surface area = 128π + 144π
- Surface area = 272π
6. For the cylinder with radius 6 and height 14:
- Surface area = 2πr² + 2πrh
- Surface area = 2π(6)² + 2π(6)(14)
- Surface area = 2π(36) + 2π(84)
- Surface area = 72π + 168π
- Surface area = 240π
Parent Tip: Review the logic above to help your child master the concept of surface area of cylinder worksheet.
