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4.Given AABC, with AB = 5cm, BC = 7cm and AC = 8cm, what is the area of the triangle?
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4.Given AABC, with AB = 5cm, BC = 7cm and AC = 8cm, what is the area of the triangle?
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Feb 26, 2021
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4.Given AABC, with AB = 5cm, BC = 7cm and AC = 8cm, what is the area of the triangle?
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Kiran Pagar
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In Triangle ABC
We have AB=5 cm
BC=7 cm
AC=8 cm
Use Heron's formula with
sides a,b and c
Perimeter,s=(a+b+c)/2
Area= √s(s−a)(s−b)(s−c)
S=(AB+BC+AC)/2
=(5+7+8)/2
=20/2
=10cm
Area of ABC= √10(10-5)(10-7)(10-8)
= √10(5)(3)(2)
= √300
=17.3205 cm
Sunil Shakya
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Mar 2, 2021
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Sunil Shakya
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