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Mathematics 10 Online
OpenStudy (anonymous):

ey anyone know this one .. A ladder is resting against a wall. The foot of the ladder is 6 feet from the wall, and the top of the ladder is 20 feet from the ground. Find the slope of the ladder.

OpenStudy (anonymous):

|dw:1354690239117:dw|Its a pythag theorem problem

OpenStudy (anonymous):

i think so

OpenStudy (anonymous):

so use \[a^{2} +b^{2}= c^{2}\] a is the wall b is the 6 foot space

OpenStudy (anonymous):

kk

OpenStudy (anonymous):

so \[20^{2} +6^{2} = Ladder length ^{2}\]

OpenStudy (anonymous):

k

OpenStudy (anonymous):

so it wants the "slope" of the ladder or length of ladder

OpenStudy (anonymous):

yep

OpenStudy (anonymous):

200 + 36 = ladderlength squared 236 = ladder length squared

OpenStudy (anonymous):

k

OpenStudy (anonymous):

so square root both sides

OpenStudy (anonymous):

yep

OpenStudy (anonymous):

\[\sqrt{235} = Ladder length\]

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

so whats the ladder length?

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