Question

*एक त्रिभुज की भुजाएँ 6 सेमी, 8 सेमी और 12 सेमी है। त्रिभुज का क्षेत्रफल क्या है?*​

Answer 1

Answer:

lets assume sides of tringle are a, b, c

area of tringle =\sqrt{s*(s-a)(s-b)(s-c)\\} \\

where s=(a+b+c)/2

so

S=(6+8+12)/2=13

the area of tringle given=\sqrt{13*(13-6)(13-8)(13-12)\\} \\

=> area = {13*7*5*1}^(1/2)

=> area = {455}^(1/2)= 21.33 cm square

Explanation:

Answer 2

Answer:

Area is 21.33

Explanation:

S=a+b+c/2

=6+8+12/2

=26/2

=13

Area=√S(s-a)(s-b)(s-c)

=√13(13-6)(13-8)(13-12)

=√13(7)(5)(1)

=√455

=21.33