Activities Rectangle puzzle: 1 per pair.

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Presentation transcript:

Activities Rectangle puzzle: 1 per pair

Apply formulas for perimeter, area and circumference LT 1.5 Apply formulas for perimeter, area and circumference

Math Humor Q: What is the hidden math term? RO OT

Math Humor Q: What is the hidden math term? A: Square Root RO OT

Example 1 Perimeter = 6x + 10 Area = .5(6)(x + 4) 3x + 2 Find the perimeter and area of the triangle. Perimeter = 6x + 10 Area = .5(6)(x + 4) 3x + 2

Example 2

Example 3 Find the amount of fabric used to make four rectangles. Each rectangle has a length of in. and a width of in.

Example 3

Most missed formulas!! We will no longer use 3.14 for pi unless they tell us to. Using 3.14 will not give us an exact answer because it is rounded. Instead, we will use the pi button on the calculator.

Example 4 Find the circumference and area of a circle with radius 14m.

Example 5 Find the area of a circle when the circumference is 16π.

Find the perimeter: x 3x x x + 5