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Mathematics 7 Online
OpenStudy (blake57roger):

Pythagorean Theorem

OpenStudy (blake57roger):

OpenStudy (blake57roger):

@TheSmartOne @whpalmer4

OpenStudy (blake57roger):

any idea on how to solve this

OpenStudy (blake57roger):

Are you there

TheSmartOne (thesmartone):

Ye.

OpenStudy (blake57roger):

are you stuck too

TheSmartOne (thesmartone):

Nope

OpenStudy (blake57roger):

do you know how to solve it

OpenStudy (blake57roger):

If so can you help me solve it

OpenStudy (blake57roger):

all i know id that its a decimal

TheSmartOne (thesmartone):

first let's find the diagonal of the base of the cube |dw:1449525709653:dw|

OpenStudy (blake57roger):

49

TheSmartOne (thesmartone):

how so?

OpenStudy (blake57roger):

7*7=49

TheSmartOne (thesmartone):

That's the area of the square. But that's not the length of the diagonal.

OpenStudy (blake57roger):

To find the length of the diagonal of a square, multiply the length of one side by the square root of 2: If the length of one side is x... The central angle of a square: The diagonals of a square intersect (cross) in a 90 degree angle.

OpenStudy (blake57roger):

9.8

TheSmartOne (thesmartone):

It's closer to 9.9

OpenStudy (blake57roger):

ok

OpenStudy (blake57roger):

what do i do after that

OpenStudy (blake57roger):

shouldnt we convert something to find the hundreth of an inch

TheSmartOne (thesmartone):

why not just use the exact number \(\sf 7 \sqrt{2}\)

TheSmartOne (thesmartone):

now to find the answer, here's the triangle we need to solve |dw:1449526541356:dw|

OpenStudy (blake57roger):

23.9

TheSmartOne (thesmartone):

work?

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