Perimeter & Area Of A Perimeter & Area Of A Triangle.Triangle.

By:By:Pd.1Pd.1

Benchmark: MA.6.8.2: Use coordinate geometric Benchmark: MA.6.8.2: Use coordinate geometric to represent and analyze properties of to represent and analyze properties of

geometric shapes.geometric shapes.

Definition!Definition!

PerimeterPerimeter is the distance is the distance around a shape.around a shape.

AreaArea is the space inside or is the space inside or taken up by the shape.taken up by the shape.

Area=( ) BxHArea=( ) BxH

Perimeter=the sum of all the Perimeter=the sum of all the sides.sides.

21

Example/ DrawingExample/ DrawingPerimeter = 16 in

(5+5+6)

Area = 12 in2

(6x4)/2 5 in5 in

b=6 in

h=4 in

QuestionQuestion

Figure out what the perimeter and area of the triangle?Figure out what the perimeter and area of the triangle?

10 in10 in

b=12 in

h=8 in

SolutionSolution

The area of the triangle is 48in2 because 12x8=96 and then follow the formula and you divide it by 2 and you get 48in2. The perimeter is 32in because if you add all the slides up you get 32in.

CreditsCredits

Microsoft PowerPoint Microsoft PowerPoint 20022002

Kapolei middle school Kapolei middle school webpagewebpage

Clip artClip art Mr. Imamura for Mr. Imamura for making sure my math making sure my math

is correct. is correct.