Calculating Areas and Circumferences

What is the formula for the circumference of a circle using the diameter?

• Circumference = 2 * pi * radius

• Circumference = 2 * diameter

• Circumference = pi * diameter

• Circumference = diameter / pi

Tags

CCSS.7.G.B.4

How do you calculate the area of a circle?

• Area = pi * radius

• Area = pi * diameter squared

• Area = pi * radius squared

• Area = 2 * pi * radius squared

Tags

CCSS.7.G.B.4

What is the formula to calculate the circumference of a circle using the radius?

• Circumference = pi * radius

• Circumference = pi * 2 * radius

• Circumference = 2 * pi * radius

• Circumference = radius / pi

Tags

CCSS.7.G.B.4

What is the correct way to find the area of a composite figure?

• Add the areas of all simple shapes

• Multiply the areas of all simple shapes

• Subtract the areas of overlapping shapes

• Divide the area of the larger shape by the smaller

Tags

CCSS.3.MD.C.7D

How do you calculate the area of a triangle?

• Base / Height

• Base + Height

• 0.5 * Base * Height

• Base * Height

Tags

CCSS.6.G.A.1

How do you find the area of a rectangle within a composite figure?

• Length * Width

• Length / Width

• 0.5 * Length * Width

• Length + Width

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What should you remember when calculating the area of a composite figure involving circles?

• Divide the circle's area by two if it's a semicircle

• Multiply the circle's area by two

• Always use the diameter for calculations

• Ignore the circle's area if it's less than half

What is a common mistake when calculating the area of a composite figure with a semicircle?

• Adding the circle's area to the total twice

• Multiplying the circle's area by two

• Using the radius instead of the diameter

• Forgetting to divide the circle's area by two

What is the formula for the surface area of a rectangular prism?

• 2 * (Length * Width + Width * Height + Height * Length)

• Length * Width * Height

• Perimeter of base * Height + 2 * Area of base

• 2 * (Length + Width + Height)

Tags

CCSS.7.G.B.6

What is the correct approach to calculate the surface area of a triangular prism?

• Base * Height / 2

• Length * Width * Height

• Perimeter of base * Height + 2 * Area of base

• Base * Height + Length * Width

Tags

CCSS.7.G.B.6