Question
Surface area of cylinders practice
Answers
GPT 3.5
Find the surface area of each cylinder.
1) Radius = 5 cm, Height = 10 cm
To find the surface area of a cylinder, we need to find the area of the two bases and the lateral surface area.
A) Base area = π * r^2 = π * (5 cm)^2 = 25π cm^2
B) Lateral surface area = 2π * r * h = 2π * 5 cm * 10 cm = 100π cm^2
To find the total surface area, we add the base area and the lateral surface area.
Total surface area = Base area + Lateral surface area
Total surface area = 25π cm^2 + 100π cm^2
Total surface area = 125π cm^2
2) Radius = 3 cm, Height = 8 cm
A) Base area = π * r^2 = π * (3 cm)^2 = 9π cm^2
B) Lateral surface area = 2π * r * h = 2π * 3 cm * 8 cm = 48π cm^2
Total surface area = Base area + Lateral surface area
Total surface area = 9π cm^2 + 48π cm^2
Total surface area = 57π cm^2
1) Radius = 5 cm, Height = 10 cm
To find the surface area of a cylinder, we need to find the area of the two bases and the lateral surface area.
A) Base area = π * r^2 = π * (5 cm)^2 = 25π cm^2
B) Lateral surface area = 2π * r * h = 2π * 5 cm * 10 cm = 100π cm^2
To find the total surface area, we add the base area and the lateral surface area.
Total surface area = Base area + Lateral surface area
Total surface area = 25π cm^2 + 100π cm^2
Total surface area = 125π cm^2
2) Radius = 3 cm, Height = 8 cm
A) Base area = π * r^2 = π * (3 cm)^2 = 9π cm^2
B) Lateral surface area = 2π * r * h = 2π * 3 cm * 8 cm = 48π cm^2
Total surface area = Base area + Lateral surface area
Total surface area = 9π cm^2 + 48π cm^2
Total surface area = 57π cm^2