Question

in an isosceles triangle ABC ,if AB =AC=25cm and altitude from A on BC is 24 cm ,then find BC​

Answer 1

Answer:

In an isosceles triangle, we have

AB = AC = 25 cm

And,

Altitude = 24 cm on side BC at M

Step-by-step explanation:

25² - 24² = BM²

(25+24) (25-24) = BM ²

BM² = 49

BM = 7

BC= BM + CM

BC= 2×7

BC = 14cm