Question

S=1/2•9•24•sin135°=
Помогите срочно

Answer 1

$s = \frac{1}{2} \times 9 \times 24 \times \sin(135 {}^{o} ) = 9 \times 12 \times \frac{ \sqrt{2} }{2} = 9 \times 6 \sqrt{2} = 54 \sqrt{2} = 76.36$