Answer:

1. 141

From the question 1, this is a cylinder, the surface area is:

πr²+2πrh=π×3²+2π×3×6=141

2. 58.5

for 2, this is a cone the surface area is:

1/2 bh=1/2×13×9=58.5

3. 21

for 3, this is a pyramid the surface area is

1/2×3×4+1/2×5×2+1/2×4×5=21

4. 10.7

for 4, this is a sphere cone, surface area is

4πr²=4π×9²=10.7

5. 273

for 5, this is a cone the surface area is

π3²+2πrs=π×3²+2π×3×3=273

Step-by-step explanation:

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