Area formulas Circle and Triangle

Area Formulas

Draw

How do I find the area of this rectangle?

Draw

Draw a line and create 2 triangles.

Open Ended

What happens to the area after you created the 2 triangles?

Area Formula

​Example

Draw

Find the area

Draw

Find the missing information

Draw

Find the missing information

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Draw

Find area of a circle with radius of 3.

Multiple Choice

Find area of a circle with a diameter of 10 ft

• $$A=62.8ft^2$$

• $$A=31.4ft^2$$

• $$a=314ft^2$$

• $$A=78.5\ ft^2$$