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ACT Aspire Math: Solving for a Trapezoid's Area Using Its Height 2 Views


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Description:

If the area of the trapezoid is 21, what is its height h? Use the formula A = for the area of a trapezoid.


Transcript

00:03

Okay Math people What time is it It's trap is

00:06

oid time You know the most boring time of the

00:08

day All right If the area the traps are twenty

00:10

one what's the height H use formula a equals base

00:14

one plus based teo over two times height for the

00:17

area of trap is oid art That's fancy formula So

00:23

let's think about this The area the trap is always

00:25

given bhaiyya this little formal here where h is the

00:27

perpendicular hide of the prop is oi that's this part

00:30

That's the age Well the diagram shows that base one

00:33

plus based to over two is five plus nine over

00:37

two We're just plugging in charging the numbers they gave

00:39

us on that's fourteen over to which is seven So

00:42

a little bit of reverse engineering gives us that seven

00:44

times eight is twenty one and then h is twenty

00:47

one over seven or three So the height is three

00:50

answers See Okay now we've got that down It'll be

00:52

a cinch to help this guy figure out what sure 00:00:54.256 --> [endTime] best fits his body type

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