Calculating Areas of Shapes

The video tutorial explains how to calculate the area of a blue shaded region within a rectangle containing six circles. It begins by introducing the problem and the necessary area formulas for a rectangle and a circle. The dimensions of the rectangle and circles are analyzed, leading to the calculation of their respective areas. Finally, the area of the blue shaded region is determined by subtracting the total area of the circles from the area of the rectangle, resulting in approximately 5.15 square units.

What is the formula for calculating the area of a rectangle?

• Length times width

• Length divided by width

• Length minus width

• Length plus width

Tags

CCSS.7.G.B.4

If a circle has a diameter of 2 units, what is its radius?

• 1 unit

• 3 units

• 2 units

• 0.5 units

Tags

CCSS.7.G.B.4

How do you calculate the area of a circle?

• Pi times radius times diameter

• Pi times diameter

• Pi times radius squared

• Pi times diameter squared

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the total area of the rectangle in the problem?

• 12 square units

• 18 square units

• 24 square units

• 30 square units

What is the approximate area of the blue shaded region?

• 5.15 square units

• 10.5 square units

• 20.15 square units

• 15.5 square units