Question Number 129096 by Gulnoza last updated on 12/Jan/21
Answered by talminator2856791 last updated on 15/Jan/21
$$\:\mathrm{2}\left(\frac{\mathrm{300}−\mathrm{75}\pi}{\mathrm{4}}\right) \\ $$
Commented by Gulnoza last updated on 15/Jan/21
can you prove? please