Question

7) The sides of the triangle are 100 cm, 120 cm and 140 cm. Find its area (Use mathcal J G=2.45)​

Answer 1

Answer:

6000cm^2 answer using formula s= a+b+c/2= s√(s-a)+(s-b)+(s-c)

Answer 2

Answer:

100+120+140=360

s=360/2=180cm=1.8m

now,

√s(s-a)(s-b)(s-c)

√1.8×0.8×0.4×0.6

0.257m

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