s = 13Area = 13²Or 169 perimeter=13(4) or 52

Warm Up March 29, 20113. Which expression gives the area

and perimeter of the square we just solved?

A. P=2(13) A=4(13)

B.P=4(13) A=13²

C.P=13² A=4(13)

Area of a Rectangle

base

height

Area = base X heightb hA

Area of a Parallelogram

base

height

A = bh

Area of a

base

Area = base X height

height

half a parallelogram

2

TriangleParallelogram

Area of a

base

TrapezoidParallelogram

height

base2

base1

base1

base2

Area = X heightbase+( )

2

half of a parallelogram

AREA OF A TRAPEZOID

A = (b1+b2)h

2

A = 1 (b1+b2)h2

NOTES:

b1

b2

h

3

5

9

A h b1 b2 = (

(

+

2

6 6

= (

(

+

BIG IDEA!!

ROUND TABLECLOTH, SIZE OF A PANCAKE…