Question

!!!!!!!!!!!! плиз!!!!!!!!

Answer 1

Ответ:

$s = \frac{1}{2} \times h \times (a + b) \\ h = 5 \sqrt{3} \\ a = 10 \\ b = 40 \\ s = \frac{1}{2} \times 5 \sqrt{3} \times 50 = 125 \sqrt{3}$