Area and Geometry Concepts

This video tutorial reviews how to find the area of various 2D shapes, including trapezoids, triangles, parallelograms, and circles. It emphasizes using formula sheets and substitution for calculations. The tutorial also includes a practical example of calculating the area of a wall with windows to determine the paint needed.

Where can you find the formula sheet for 2D shapes?

• In the library

• On the classroom wall

• In your pink resources folder on Schooly

• In your textbook

What does the 'H' represent in the formula for the area of a trapezoid?

• Half the base

• Hypotenuse

• Height

• Horizontal length

In the formula for the area of a trapezoid, what do B1 and B2 stand for?

• Bottom 1 and Bottom 2

• Boundary 1 and Boundary 2

• Breadth 1 and Breadth 2

• Base 1 and Base 2

Which formula is used to find the area of a triangle?

• Base * Height

• Base - Height

• 1/2 * Base * Height

• Base + Height

In the triangle example, what is the base of the triangle?

• 11

• 12

• 9

• 10

What is the formula for the area of a parallelogram?

• Base - Height

• Base * Height

• 1/2 * Base * Height

• Base + Height

What is the approximate value of Pi used in the area of a circle?

• 3.00

• 3.75

• 3.14

• 3.50

If the diameter of a circle is 8, what is the radius?

• 4

• 6

• 8

• 2

What is the area of a wall that is 16 feet long and 10 feet tall?

• 130 square feet

• 160 square feet

• 140 square feet

• 150 square feet

How much area does Mr. Gear need to paint if the wall has two 3x3 windows?

• 160 square feet

• 170 square feet

• 150 square feet

• 142 square feet