Volume
Surface Area
True or False
Vocab
Problems
100
What is the Volume formula for a sphere?
V= 4/3πr^3
100
What is the surface area formula of a sphere?
SA= 4πr2
100
A sphere is a three dimensional object that is round in shape.
True
A sphere is a three dimensional object that is round in shape.
100
What does r stand for in the surface area formula?
Radius: A straight line from the center to the circumference of a circle or sphere
100
Solve for the surface area in cm. Round to the nearest hundredth.
804.25cm2
200
In the sphere volume formula, is the radius cubed or squared?
The radius is cubed in the sphere volume formula.
200
In either the surface area or volume formulas for a sphere, what does the "r" mean?
The Radius
200
A cross section of a sphere is a triangle.
False
A cross section of a sphere is a circle
200
What does V stand for in this formula?
V= 4/3πr^3
Volume
200
What is the volume of a sphere with the radius of 14ft?
Round to the nearest hundredth.
11,488.21ft3
300
V= 4/2πr^3
Is this the correct volume formula for a sphere?
No, the correct formula is
V= 4/3πr^3
300
Is this formula for the surface area or volume of a sphere:
4 multiplied by pi and the radius squared
Surface Area
4πr²
300
Is this a net of a sphere?
False, this is a net of a Dodecahedron.
This is a net of a sphere:
300
What is the definition of a sphere?
A sphere is a three-dimensional object that is round in shape. The sphere is defined in three axes, i.e., x-axis, y-axis and z-axis. This is the main difference between circle and sphere. A sphere does not have any edges or vertices, like other 3D shapes.
A sphere is also a round solid figure, or its surface, with every point on its surface equidistant from its center.
300
What is the volume and surface area of this sphere.
Round to the nearest tenth.
Volume: 1436.8cm3
Surface Area: 615.8cm2
400
Mr. Zombie got hit in the head with a ball which had 8cm as 2/3rds of half of the radius of that ball.
Mr. Zombies head's radius, is triple the half of 3/4ths of the ball's diameter.
What is the surface area of the ball, and the volume of Mr. Zombies head?
Round to the nearest tenth.
The Ball's surface area: 7238.2 cm2
The volume of Mr. Zombies Head: 659583.7 cm3