dmr200351003
dmr200351003 dmr200351003
  • 11-04-2018
  • Mathematics
contestada

Plz help ASAP

Find the value of m

Plz help ASAP Find the value of m class=

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calculista
calculista calculista
  • 22-04-2018
we know that

cos 45°=√2/2------> equation 1

in the triangle 
cos 45°=m/(9√2)----> equation 2
equals 1 and 2
so
√2/2=m/(9√2)---> 9√2*(√2)=2*m-------> 9*2=2*m-------> m=9

the answer is
m=9 units


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