Question

$ANY MATH EXPERT HERE?.✌️$
$SOLVE THIS FOR MY SIS..✌️$
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Answer 1

Step-by-step explanation:

(a+b+c)^2=a^2+b^2+c^2+2ab+2bc+2ca

(formula)

(a+b+c)^2=a^2+b^2+c^2 + 2(ab+bc+ca)

12^2=64+2(ab+bc+ca) (Substituting the given values)

144=64+2(ab+bc+ca)

144- 64= 2(ab+bc+ca) (Solving)

80=2(ab+bc+ca)

80/2=ab+bc+ca

40=ab+bc+ca

Ans- 40

Answer 2

Step-by-step explanation:

Hence, this is the required answer.

THNK U