Bantu jawab please.

22. s=√t²+r²
s²=t²+r²
25²=24²+r² → 625=576+r²
625-576=r² → 49=r² → 7=r
L. Perm = πrs
=22/7x7x25
=550
550x10 = 5500cm
5500cm →55m → 55000 (D)


Maaf cuma bisa jawab no 22 ajaa><