Question

Find the area of triangle whose sides are 15 CM 17 cm and 18cm

Answer 1

Step-by-step explanation:

By heroncs formula,

area = √s(s-a)(s-b)(s-c)

s = (a+b+c)/2

s = (15+17+18)/2

s = 25

by that formula,

√(25)(25-15)(25-17)(25-18)

√(25)(10)(8)(7)

√5*5*2*5*2*2*2*7

5*2*2√5*7

Area = 20√35

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