Toggle navigation
Images.Elk.pl
New Text Document
zad 16
r^2=3^2+4^2;
r^2=25
r=5;
zad 15
180-54=126;
126=7x;
x= 18;
alfa=54;
beta=18;
gamma=108;
zad 14
x*(x+7)=60;
x^2+7x-60=0
x1=5
x2=-12 -odrzucamy długość nie może być ujemna
x+7=12;
5^2+12^2=c^2
c=13;
zad13
1:4
obw=36;
5x=18;
x=3,6;
4x=14,4
pole=3,6*14,4=51,84;
zad 12;
a=20 b=12;
tg=3;
a1=8;
tg=a1/b1;
3=8/b1;
b1=24;
P=(20+12)*24/2
p=32*12
pole=384;
zad 11
a=4;
h1=4* sqrt(3)/2
h2^2=4^2-(4*sqrt(3)/2)^2
h2^2=16-(16*3/4)
h2^2=4
h2=2;
Pole=(2*4* sqrt(3)/2)/2
Pole=4* sqrt(3)/2
zad 10
|AD|=a;
2a=6
|AD|=3;
zad 9
beta=2alfa;
3alfa=186;
alfa=62;
beta=124;
zad 8
alfa=(360-160)/2
alfa=100;
zad 7
20/32=x/(x+24)
20*(x+24)=32x;
20x+480=32x;
480=12x;
x=40
|ED|=40;
zad 6
a-liczba przekatnych
n(n-3)/2=a;
8(8-3)/2=a
40/2=a;
a=20;
zad 5;
p=6*(a^2sqrt(3)/4)
36sqrt(3)=6*(a^2sqrt(3)/4)/6
6sqrt(3)=a^2sqrt(3)/4 /*4
24sqrt(3)=a^2sqrt(3) / sqrt(3)
24=a^2
a=2sqrt(6)
zad 4
15 sqrt(3)=h
h=a*sqrt(3)/2
15 *sqrt(3)=a*sqrt(3)/2 /*2
30* sqrt(3)=a*sqrt(3) /sqrt(3)
a=30;
obw=3*30=90;
P=30^2sqrt(3)/4
p=900sqrt(3)/4
zad 3
S-srednica
s^2=3^2+4^2;
s^2=25;
s=5;
r-promien wpisanego
P-pole
r=2*p/(a+b+c)
p=3*4/2=6
a+b+c=3+4+5=12;
r=12/12=1;
zad 2
r=1/2*a;
25 pi=pi*r^2
r^2=25
r=5
a=10;
Pole=10*10=100
Wyszukiwarka
Podobne podstrony:
New Text Document (2)
New Text Document
New Text Document
New Text Document
New Text Document (3)4
New Text Document
New Text Document
New Text Document
New Text Document(1)
New Text Document
New Text Document (3)
New Text Document (3)
New Text Document (3)5 zbiornik2
New Text Document
więcej podobnych podstron