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1. Obl. h
h=½ IabI √3
h=½*8√3
h=4√3[cm]
2. obl. x
h²+x²=IabI²
(4√3)²+x²=64
48+x²=64
x²=16
x=4[cm]
3.obl. y
y=6cm-x
y=2 cm
4. obl. IbcI
y²+h²=IbcI²
4+48=IbcI²
IbcI=2√13
5. obl. ob
ob=IabI+IacI+IbcI
ob=8+6+2√13=14+2√3cm
6.obl pole
p=½IacI*h
p=3*4√3=12√3cm²
zad 2
1.obl h
h=½*8cm
h=4cm
2.oblx
x=½*8√3cm
x=4√3cm
3.obl. IabI
IabI=x+h
IabI=4√3+4
IabI=4(√3+1)cm
4.obl. ob
ob=4√3+4+8+4√2=4(√3+√2+3)cm
5.obl. p
p=½IabI*h
p=(4√3+4)*4 /2=8√3+8=8(√3+1)cm²