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4. The sides of a triangle are 12cm, 35cm and37cm.Find its area. |
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Answer» let side a=12cm sideb=35cm and side c=37cm∴ semiperimeter,= (a+b+c)/2=12+35+37/2=84/2=42 cm∴area of the triangle by heron'sformula,Δ=√s(s-a)(s-b)(s-c)Δ=√42(42-12)(42-35)(42-37 )Δ=√42*30*7*5Δ=√2*3*7*7*5*2*3*5Δ=2*3*5*7Δ=210 cm^2∴ total area of the triangle is= 210 cm^2 please like the solution 👍 ✔️👍 |
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