Question

∆ABC angle-A=60°AB =AC= 7•2cm. what is the measure of angle B. find lenght ofAB​

Answer 1

Answer:

given ,

AB = AC = 7.2 cm

this means that the length of AB is 7.2 cm

If you typed the question wrong though ,

AB = AC = 7.2 cm

this would mean that the opposite angles are also equal.

∠B = ∠C

∠ A = 60°

∠B + ∠C = 180-60

     = 120°

∴ ∠B = ∠C = 60°

by the above results , we can conclude that the triangle is an equilateral triangle ie all the sides and angles are equal .

If all the sides are equal ,

AC = AB = BC = 7.2 cm

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