If hI, h2' and h3 are the altitudes dropped from P, Q, and
Chapter , Problem 9.4.48(choose chapter or problem)
If hI, h2' and h3 are the altitudes dropped from P, Q, and R, respectively, in a triangle (see the figure), show that 1 lIs - + - + - = - h1 h2 h3 K R awhere K is the area of the triangle and s = (a + b + c).2K [Hint: h\ = -.Ja
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