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Mathematics 21 Online
OpenStudy (phebe):

What is the formula for a trapezoid? MEDALSS!!

OpenStudy (camerondoherty):

Formula for what? Area?

OpenStudy (phebe):

area of a trapezoid formula?

OpenStudy (camerondoherty):

\[\Huge A = \frac{ a+b }{ 2 }h\]

OpenStudy (phebe):

ok thanx

OpenStudy (camerondoherty):

You're Welcome c:

OpenStudy (phebe):

can u help me with one more thing

OpenStudy (camerondoherty):

Sure c: Ill try my best!

OpenStudy (phebe):

How many square feet of grass on a trapizoidal field with a hieght of 75ft and basses of 125ft an 81 ft?

OpenStudy (phebe):

do u know this

OpenStudy (camerondoherty):

Ok sorry my browser closed on me... So Using the equation i just gave you we give the points values. a and b doesnt matter what order they are in |dw:1409260475623:dw| a = 81 b = 125 h = 75 Using the equation we substitute: \(\Huge A = \frac{ 125+81 }{ 2 }75\) Can you solve this?

OpenStudy (phebe):

i think can u jus help alil more plz

OpenStudy (phebe):

so i add then divide right

OpenStudy (camerondoherty):

yea

OpenStudy (phebe):

125+81=206 right

OpenStudy (camerondoherty):

Then you multiply

OpenStudy (phebe):

what to do with that 75

OpenStudy (phebe):

multiply what?

OpenStudy (phebe):

is the answer 5.49

OpenStudy (phebe):

@camerondoherty

OpenStudy (phebe):

nvm i got it

OpenStudy (camerondoherty):

The answer is 7725 ft

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