Question

Mathematics -Class-IX
Q3. Use Heron's formula to find
the area of triangle shown in the figure.
C= 5cm
a= 3cm
b= 4cm
Section-C​

Answer 1

Answer:

Here,a=3cm, b=4cm, c=5cm

So, s=a+b+c/2

s=3+4+5/2

s=12/2

s=6cm

By using Heron's formula, we get

√s(s-a)(s-b)(s-c)

√6(6-3)(6-4)(6-5)

√6(3)(2)(1)

√6×6

√(6)^2

6cm^2

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