Please begin working on your warm up.

Please get out your daisies

♥Cut out your construction

♥Bring it to me so I can enter your grade

♥Glue it on the poster paper

♥Have a seat, get your notes out, and be ready to start section 1.8

1.8 Perimeter, Circumference & Area♥ Perimeter is the distance around a polygon

♥ Circumference is the distance around a circle.

♥ Area is the number of square units that a shape encloses.

♥ Perimeter is labeled in units

♥ Circumference is labeled in units

♥ Area is labeled in units squared.

Really super duper, extra

double triple, uber

important!!!

TrapezoidA = (b1 + b2)h 2

b1

b2

h

ParallelogramA=bh

b

h

Area Addition Postulate

25 sq ft

45 sq ft

13 sq ft11 sq

ft

Total area = 94 sq. ft.

To find the area of the shaded region

1. Find the area of the big shape

2. Find the area of the small shape

3. Subtract them

7 units

10 units

3 units

4 units

Area of large shape = 70 sq unitsArea of small shape = 12 sq unitsArea of shaded region = 58 sq units.

Midpoint Formula

Distance Formula

White Board Time

09000 2 87654321510 04 98765432103 9876543210987654321021 987654321098765432100Hours Minutes Seconds

Doodle Time Timer

09000 1 87654321500 04 98765432103 9876543210987654321021 987654321098765432100Hours Minutes Seconds

Insert Text Here

Time’s up!

Erase your

boards.

Find the coordinate of the midpoint of the segment with the given endpoints.

1. 3 and 5

2. 7 and 4

3. 5 and 9

4. 6 and 10

4-1 1/2

-2

-8

Find the coordinates of the midpoint of AB

5. A(6, 7), B(4, 3)

6. A(1, 5), B(2, 3)

7. A(14, 2), B(7, 8)

8. A(0, 0), B(5, 12)

(5, 5)

(1/2, 1)

(10 1/2, -5)

(-2 1/2, 6)

Find the distance between each pair of points. If necessary, round to the nearest tenth.

17. A(6, 7), B(1, 7)18. C(5, 5), D(5, 3)

7 units 8 units

2

2

14

4 4

38 8

6 2

22 sq units

16

4

28

44 sq units

3 12

32

Find the area and circumference of each circle in terms of π.

A =πr2

A =π (16) 2

A = 256 π units2

A =πr2

A =π (3.9) 2

A = 15.21 π units2

C = 2πrC = 2π(3.9)C = 7.8π units

C = 2πrC = 2 π (16)C = 32 π units

pg 64; 7-33 odd, 34-68 all

Your assignment