Question

*त्रिभुज का क्षेत्रफल ज्ञात कीजिए, जिसकी भुजाएँ 3 सेमी, 5 सेमी और 6 सेमी हैं?*

1️⃣ 4√14 सेमी²
2️⃣ 2√14 सेमी²
3️⃣ 4√15 सेमी²
4️⃣ 4√7 सेमी²

Answer 1

Answer:

2√14 cm^2

Step-by-step explanation:

Here , a = 3, b = 5 , c = 6

S = (3 + 5 + 6)/2

So, S = 7

Now,

A = √ s(s-a)(s-b)(s-c)

= √[7(7-3)(7-5)(7-6)]

= √(7×4×2)

= 2√14 cm^2

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