Question

pls answer q 19 fast​

Answer 1

True

Pls mark as brainliest

Answer 2

$\sf{\bold{\green{\underline{\underline{Given}}}}}$

• Sides of a triangle = 3cm , 4cm , 5cm
• Area = 6cm^2

______________________

$\sf{\bold{\green{\underline{\underline{To\:Find}}}}}$

• Is Given area correct or not ??

______________________

$\sf{\bold{\green{\underline{\underline{Solution}}}}}$

⠀⠀⠀⠀

$\sf{\red{\boxed{\bold{Semi\: Perimeter = \dfrac{a+b+c}{2}}}}}$

⠀⠀

$\sf: \implies\: {\bold{ Semi\: perimeter = \dfrac{ 3 + 4 + 5}{2}}}$

⠀⠀⠀⠀

$\sf: \implies\: {\bold{ Semi\: Perimeter = \dfrac{12}{2}}}$

⠀⠀⠀⠀

$: \implies\: \sf{\bold{ Semi\:Perimeter = 6cm}}$

⠀⠀⠀⠀

$\sf{\red{\boxed{\bold{area = \sqrt{s(s-a)(s-b)(s-c)}}}}}$

⠀⠀⠀⠀

$: \implies\: \sf{\bold{ area = \sqrt{ 6( 6-3)(6-4)(6-5)}}}$

⠀⠀⠀⠀

$: \implies\: \sf{\bold{ area = \sqrt{ 6\times 3 \times 2 \times 1}}}$

⠀⠀⠀⠀

$: \implies\: \sf{\bold{ area = \sqrt{ 2 \times 3\times 3\times 2\times 1}}}$

⠀⠀⠀⠀

$: \implies\: \sf{\bold{ area = 6cm^2}}$

⠀⠀⠀⠀

• Check weather the given statment is true or not

⠀⠀⠀⠀

$\sf{\bold{ 6cm^2 = 6cm^2}}$

⠀⠀⠀⠀

______________________

$\sf{\bold{\green{\underline{\underline{Answer}}}}}$

• Hence the statement is true