Question

Solve the triangle in whicha=2, b=1 and c=13.​

Answer 1

s=(a+b+c)/2

(2+1+13)/2

16/2=8

area of triangle

$\sqrt{s(s - a)(s - b)(s - c)}$

$\sqrt{16(16 - 2)(16 - 1)(16 - 13)} \\ \sqrt{16 \times 14 \times 15 \times 3} \\ \sqrt{10080 } \\ 100.39cm ^{2}$