Question

The area if an isosceles triangle having base 4 cm and the length of obe of the equal side 5 cm is

Answer 1

Answer:

the answer is 2√21 cm²

Step-by-step explanation:

a = 5 cm

b = 4 cm

are of an isosceles triangle = b / 4 * √4a^2 - b^2

                                             = 4/4√4*25 - 16

                                             = √100 - 16

                                             = √84

                                             = √4*21

                                             = 2√21 cm²

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