" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
stosujemy twierdzenie pitagorasa:
(½c)² + x² = r²
¼c² + x² = r²
¼*12² + 8² = r²
¼*144 + 64 = r²
36 + 64 =r²
r² = 100
r = 10 cm
obwód O = 2πr = 20π ≈ 62,8 cm
pole P = πr² = π*10² = 100π ≈ 314 cm²