Assertion: The sides of a ΔABC are in the ratio 2:3:4 and its perimet

1.	Assertion: The sides of a ΔABC are in the ratio 2:3:4 and its perimeter is 36cm. Then, ar(ΔABC)=12√15 cm2 Reason: If 2s=(a+b+c), where a, b, c are the sides of a triangle, then its area =√(s−a)(s−b)(s−c) Which of the following is correct?
Answer» Assertion: The sides of a $Δ A B C$ are in the ratio 2:3:4 and its perimeter is 36cm. Then, $a r (Δ A B C) = 12 \sqrt{15} c m^{2}$ Reason: If $2 s = (a + b + c)$ , where a, b, c are the sides of a triangle, then its area $= \sqrt{(s - a) (s - b) (s - c)}$ Which of the following is correct?

Assertion: The sides of a ΔABC are in the ratio 2:3:4 and its perimeter is 36cm. Then, ar(ΔABC)=12√15 cm2 Reason: If 2s=(a+b+c), where a, b, c are the sides of a triangle, then its area =√(s−a)(s−b)(s−c) Which of the following is correct?

Answer»

Assertion: The sides of a $Δ A B C$ are in the ratio 2:3:4 and its perimeter is 36cm. Then, $a r (Δ A B C) = 12 \sqrt{15} c m^{2}$

Reason: If $2 s = (a + b + c)$ , where a, b, c are the sides of a triangle, then its area $= \sqrt{(s - a) (s - b) (s - c)}$

Which of the following is correct?