Question

त्रिभुज का क्षेत्रफल क्या है जिसकी भुजाएं 3 सेंटीमीटर 5 सेंटीमीटर और 6 सेंटीमीटर है​

Answer 1

Answer = 2√14cm²

Explanation:

• perimeter of triangle = sum of all side = 3cm + 5cm + 6cm
• = 14cm..

• and then ,
• first side (a) = 3cm
• second side (b) = 5cm
• third side (c) = 6cm

• s ( semi perimeter ) = p/2 = 14/2 =7

• by heron's formula;
• √s(s-a) (s-b) (s-c)
• √7(7-3) (7-5) (7-6)
• √7×4×2×1
• √7×2×2×2×1
• 2√7×2×1
• 2√14 cm²

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