Oblicz obwód trójkąta ABC.
A (2,2)
B (6,-6)
C (6,5)
|AB|²=4²+8²
|AB|²=16+64
|AB|²=80
|AB|=4√5
|BC|=0²+11²
|BC|²=0+121
|BC|²=121
|BC|=11
|CA|²=4²+3²
|CA|²=16+9
|CA|²=25
|CA|=5
Ob.=4√5+11+5=16+4√5=4(√5+4)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
|AB|²=4²+8²
|AB|²=16+64
|AB|²=80
|AB|=4√5
|BC|=0²+11²
|BC|²=0+121
|BC|²=121
|BC|=11
|CA|²=4²+3²
|CA|²=16+9
|CA|²=25
|CA|=5
Ob.=4√5+11+5=16+4√5=4(√5+4)