Geometry Flashcard Review- 2D & 3D figures

Front

What is the formula for the volume of a cone?

Back

Volume = (1/3) * π * r² * h, where r is the radius and h is the height.

Front

How do you calculate the area of a circle?

Back

Area = π * r², where r is the radius of the circle.

Front

What is a composite figure?

Back

A composite figure is a shape that is made up of two or more simple geometric shapes.

Front

How do you find the volume of a composite solid?

Back

Calculate the volume of each simple shape separately and then add them together.

Front

What is the formula for the volume of a cylinder?

Back

Volume = π * r² * h, where r is the radius and h is the height.

Front

What is the formula for the area of a sector of a circle?

Back

Area = (θ/360) * π * r², where θ is the angle in degrees and r is the radius.

Front

How do you round a number to the nearest tenth?

Back

Look at the hundredths place; if it's 5 or more, round up the tenths place by one.

Front

What is the formula for the surface area of a cylinder?

Back

Surface Area = 2πr(h + r), where r is the radius and h is the height.

Front

What is the difference between area and volume?

Back

Area measures the space within a 2D shape, while volume measures the space within a 3D object.

Front

How do you find the area of a rectangle?

Back

Area = length * width.