Answer:
Step-by-step explanation:
1.
Base area = πr² = 6²π = 36π in²
Circumference = 2πr = 12π in
Lateral area = 2πrh = 144π in²
Total surface area = 2×36π + 144π
= 216π in²
2.
Base area = πr² = π3.25² = 10.5625π in²
Circumference = 2πr = 6.5π in
Lateral area = 2πrh = 6.5π×6.2 = 40.3π in²
Total surface area = 2×10.5625π + 40.3π = 61.425π in²
