Odpowiedź:
Pole trapezu:
P = 1/2 × [(a+b) × h]
P = 55
55 = 1/2 × [x + 8) × 5
55 = 1/2 × (5x + 40) /×2
110 = 5x + 40
70 = 5x
14 = x
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Odpowiedź:
Pole trapezu:
P = 1/2 × [(a+b) × h]
P = 55
55 = 1/2 × [x + 8) × 5
55 = 1/2 × (5x + 40) /×2
110 = 5x + 40
70 = 5x
14 = x