A drawing of the base of my house is below. I want to plant flowers around my entire house. How would I go about finding out how many flowers I need? (Each flower covers about 2 ft. from left to right).

Warmup:

Section 1.9: Perimeter,

Circumference, and Area

LEQ: How do we estimate area, perimeter, or circumference of an irregular figure?

Perimeter: The sum of the side lengths of a polygon

Area: The number of square units enclosed by a polygon

What is a square unit?

Perimeter= 4s (s=side length)

Area=s2

Square

Perimeter= 2L+2W

Area=L(W)

Rectangle

Circumference= 2r, r=radius◦ Or D, D=diameter, why?

Area=πr2

Circle

Postulate 1-9:◦ If 2 figures are congruent, then their areas are

equal Postulate 1-10:

◦ The area of a region is the sum of the areas of its nonoverlapping parts.

A carpeting specialist has to lay carpet in the room below. How many square ft. of carpet will he need?

Ft.

A circle has an area of 144. What is the diameter?

If a rectangle has a perimeter of 24 cm. and a length of 5 cm., what is the width?

p. 56: 1-12, 32-40

p. 65: 8, 11, 26,37,38

Homework (2 assignments)