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Mathematics 17 Online
OpenStudy (studygurl14):

Can someone help me with these practice problems?

OpenStudy (studygurl14):

@TheSmartOne @perl @SolomonZelman @phi @johnweldon1993

OpenStudy (studygurl14):

OpenStudy (studygurl14):

I got approx 10.4 for the first one. is that correct? @mathstudent55

OpenStudy (studygurl14):

@Nnesha

Nnesha (nnesha):

yes

OpenStudy (studygurl14):

I have no idea how to do the second one tho.

Nnesha (nnesha):

ohh no i didn't mean yes your answer right you said @nnesha so i saind yes sir mam

OpenStudy (studygurl14):

so..my answer is incorrect...?

Nnesha (nnesha):

let me check

OpenStudy (studygurl14):

@Nnesha ...?

Nnesha (nnesha):

ok so do you know LAW OF COSINES

OpenStudy (studygurl14):

yes....is my first answer correct...?

OpenStudy (mathmath333):

\(\Huge\tt \begin{align} \color{black}{\checkmark}\end{align}\)

OpenStudy (mathmath333):

for 2nd use heron's formuala http://www.mathsisfun.com/geometry/herons-formula.html

OpenStudy (studygurl14):

Thanks @mathmath333

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