LMHS Assignment #6: SA & V of spheres and hemispheres

Which formula calculates the volume of a sphere?

• $\frac{4}{3}\pi r^3$

• $4\pi r^2$

• $\frac{1}{3}\pi r^3$

• $\pi r^2$

Tags

CCSS.HSG.GMD.A.3

CCSS.8.G.C.9

Which formula calculates the surface area of a sphere?

• $\frac{4}{3}\pi r^3$

• $4\pi r^2$

• $\frac{1}{3}\pi r^3$

• $\pi r^2$

Tags

CCSS.HSG.GMD.A.3

CCSS.8.G.C.9

Find the surface area  of the sphere.

• 310.2 cm²
• 379.2 cm²
• 221.6 m²
• 456  cm²

Tags

CCSS.HSG.GMD.A.3

CCSS.8.G.C.9

Find the volume of the sphere.

• 310.2 cm³
• 379.2 cm³
• 221.6 m³
• 456  cm³

Tags

CCSS.HSG.GMD.A.3

CCSS.8.G.C.9

What is the surface area of a sphere with the radius of 4 inches?

• 561.5 in²
• 267.9 in²
• 201.0 in²
• 50.2 in²

Tags

CCSS.HSG.GMD.A.3

CCSS.8.G.C.9

Find the volume of the hemisphere

• 904.3 in³
• 226.1in³
• 113.0 in³
• 452.2 in³

Tags

CCSS.HSG.GMD.A.3

CCSS.8.G.C.9

Find the surface area of the hemisphere

• 134.0 m²
• 100.5 m²
• 267.9 m²
• 201.6 m²

Tags

CCSS.HSG.GMD.A.3

CCSS.8.G.C.9

The surface area of a hemisphere is 1847.26 yd². What is the radius?

• 196 yd

• 14 yd

• 28 yd

• 3.8 yd

When a sphere has a volume of 972π, what is the radius of the sphere?

• 9
• 7
• 18
• 21

Tags

CCSS.HSG.GMD.A.3

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.4

Describe the error and correct the mistake.

• They used the radius instead of the diameter. he correct volume is $150\ in^2$ .

• They used the diameter instead of the radius. The correct volume is $9.42\ in^2$ .

• They used the diameter instead of the radius. The correct volume is $150\ in^2$ .

• They used the radius instead of the diameter. The correct volume is $9.42\ in^2$ .

Tags

CCSS.HSG.GMD.A.3

CCSS.HSG.GMD.A.1

CCSS.HSG.GMD.A.2