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ABC is an isoscele triangle in which [AB]=[AC]=5cm and [BC]=6cm. Calculate [AM], where M is the mid-point of BC.

  • trig -

    In order to find the length of [AM], you want to look at only half of this triangle. Half of an isosceles triangle is a right angle triangle! Therefore you can use Pythagorean theory:

    a^2 + b^2 = c^2 (hypotenuse)

    Do you think you can solve this from here?

  • trig -


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