1. Perimeter, Circumference, and Area Book Section 1-8 Online: Unit 1 Lesson 8 Days to Complete: 1 day

2. STAR Questions? How do you find the perimeter of basic shapes? How do you find the circumference of circles? How do you find the area of basic shapes? New Vocab: – Perimeter – Circumference – Area

3. Definitions Perimeter(P): – Circumference(C): – Area(A): –

4. Conversions ___ ft = 1 yd 12 in = ___ ft ___ in = 1 yd 100 cm = ___ m MUST KNOW FOR TEST!!

5. Square P= A = s s p. 59

6. Rectangle Base (b) and height (h) P = A = b b h h p. 59

7. Triangle Side lengths a, b, and c P = Base b and height h A = a b c h p. 59

8. Circle Radius(r) and diameter (d) C = C = A =. O d r p. 59

9. Postulate Area Addition Postulate: – Area of a region is the sum of the areas of its non- overlapping parts p. 63

10. Practice Margaret’s garden is a square 12 ft on each side. She wants a 1-ft wide path around the entire garden. What will the outside perimeter of the path be?

11. Practice G has a radius of 6.5 cm. Find the circumference of G in terms of ∏...

12. Practice Triangle TUV has vertices T(-5, 3), U(7,-6), V(-5,-6). Find the perimeter.

13. Practice You are doing a project for Art class and you need a rectangular piece of fabric 36 in. wide and 4ft long. How many square feet do you need?

14. Practice The diameter of a circle is 16 ft. Find the area in terms of ∏.

15. Practice Find the area of the figure below.

16. Review Perimeter of square = 4s Area of square = s 2 Perimeter of rectangle = 2b + 2h Area of rectangle = bh Perimeter of Triangle = a + b + c Area of a Triangle = ½ bh Circumference = ∏d Circumference =2∏r Area of Circle =∏r 2 Make sure you can answer all 6 of the “Lesson Check” questions found on page 64 in your textbook.

17. Follow Up Each question is worth 1 extra credit point Please send in webmail with subject “1-7 extra credit” 1. Find the Perimeter and Area 6 ft 15 yd 2. The diameter of a circle is 32 in. Find the Circumference and Area in terms of ∏ 3. Find the Perimeter in the Coordinate Plane of X(0,2), Y(4,-1), and Z(-2,-1) 4. Find the Area of the figure below