What is the area of triangle with sides 12cm 16cm and 20cm?
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Given that sides of a triangle are 12 cm, 16 cm, 20cm.Then
Area of the triangle =?
Heron's formula
Area= square root of [s (s-a)(s-b)(s-c)]
Where s is semi Perimeter
Semi Perimeter =(a+b+c)/2
s=48/2
s=24
Area = square root of [24 (24-12)(24-16)(24-20)]
Area = square root of [24×12×8×4]
Area= square root of [3×2×4×3×4×8×4]
Area = 3×4×2×4
Area =24×4
Area =96 Sq cm
Area of the triangle =?
Heron's formula
Area= square root of [s (s-a)(s-b)(s-c)]
Where s is semi Perimeter
Semi Perimeter =(a+b+c)/2
s=48/2
s=24
Area = square root of [24 (24-12)(24-16)(24-20)]
Area = square root of [24×12×8×4]
Area= square root of [3×2×4×3×4×8×4]
Area = 3×4×2×4
Area =24×4
Area =96 Sq cm
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