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In an equilateral triangle, prove that three times the square of one side is equal to four times the square of one of its altitudes.

  • Post author:ats14795@gmail.com
  • Post published:October 1, 2020
  • Post category:Exercise 6.5
  • Post comments:0 Comments

Solution Proof

Continue ReadingIn an equilateral triangle, prove that three times the square of one side is equal to four times the square of one of its altitudes.

In an equilateral triangle ABC, D is a point on side BC such that BD = BC.Prove that 9 AD2 = 7 AB2

  • Post author:ats14795@gmail.com
  • Post published:October 1, 2020
  • Post category:Exercise 6.5
  • Post comments:0 Comments

Solution Proof

Continue ReadingIn an equilateral triangle ABC, D is a point on side BC such that BD = BC.Prove that 9 AD2 = 7 AB2

Sides AB and BC and median AD of s triangle ABC are respectively proportional to sides PQ and QR and median PM of ∆ PQR. Show that ∆ ABC ~ ∆ PQR.

  • Post author:ats14795@gmail.com
  • Post published:October 1, 2020
  • Post category:Exercise 6.3
  • Post comments:0 Comments

Solution

Continue ReadingSides AB and BC and median AD of s triangle ABC are respectively proportional to sides PQ and QR and median PM of ∆ PQR. Show that ∆ ABC ~ ∆ PQR.
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