If sides are 7cm, 24cm, 25cm of a triangle. Area of triangle is...
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Answer:
Step-by-step explanation:
It can be solved by heron's formula
Let all the sides be a,b,c
So,
a = 7cm
b = 24cm
c = 25cm
s = a+b+c
2
= 7+24+25/2
= 56/2
= 28
Δ = √s(s-a)(s-b)(s-c)
=√28(28-7)(28-24)(28-25)
=√28(21)(4)(3)
=√28(252)
=√7056
=84
Area of triangle = 84 cm²
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