Răspunsuri

2014-06-06T10:57:10+03:00
P =L x2 + l x 2= 8x2 +10x2 =16 +20 = 36
A =L x l= 10 x 8 = 80
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2014-06-06T10:57:12+03:00
ABC - triunghi dreptunghic
AC -ipotenuza=10
AB - Cateta=8
BC- cateta=?

Pitagora:
10^2=8^2+BC^2
100=64+BC^2
BC^2=100-64
BC^2=36
BC= radical din 36
BC=6

Avem:
L=8
l=6

Perim=8+8+6+6
Perim=16+12
Perim=28

Aria=lxL
Aria=6x8
Aria=48
2 3 2