Question

in triangle ABC, AB=15cm BC =14 cm AC =13 cm find the area of triangle ABC​

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

Answer:

Answer:

Step-by-step explanation:

Use the Heron's formula for calculating the Area of the triangle when length of 3 sides are known.

a = 15 cm, b = 14 cm, c = 13 cm.

s = a + b + c/2 = 15 + 14+ 13/2 = 42/2 = 21

Area of triangle = √s(s-a)(s-b)(s-c)

                          = √21(21-15)(21-14)(21-13)

                          =√21*6*7*8

                          =√7056

                          = 84 cm².