Question

area of triangle with sides 11 cm, 12cm and 13cm is​

Answer 1

1/2×base×height

Step-by-step explanation:

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Answer 2

s = 11 + 12 + 13/2 = 36/2 = 18

√s(s-a)(s-b)(s-c)

√18(18-11)(18-12)(18-13)

√18 * 7 * 6 * 5

√2 * 3 * 3 * 7 * 2 * 3 * 5

2 * 3 * 3 * 7 * 5

630cm^2 (Answer)