Seudónimo Seudónimo
  • 14-03-2018
  • Mathematics
contestada

Find the area of the right triangle △DEF with the points D (0, 0), E (1, 1), and F.
m∠DEF = 60°.
A √3 <--- option A is a fraction
√2
B √2
C √3
D √6
please help ASAP!!

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sqdancefan
sqdancefan sqdancefan
  • 14-03-2018
The area of the triangle is (1/2)(DE)^2*tan(60°) = (1/2)*2*√3 = √3.

Selection C is appropriate.
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