Co zaproponujes?
1)
Pole trójkąta krzywoliniowego MNP: ( rysunek 1)
PΔ∼=a2−(2Pw+PΔKLP)=
| πa2 | a2√3 | πa2 | a2√3 | |||||
=a2−(2* | + | )=a2−( | + | )= | ||||
| 12 | 4 | 6 | 4 |
| πa2 | a2√3 | |||
=a2− | − | |||
| 6 | 4 |
| π*42 | 42√3 | 8π | ||||
a) PΔABF=42− | − | =16− | −4√3 | |||
| 6 | 4 | 3 |
| π*a2 | ||
b) P+2* PΔABF+ | =a2 | |
| 4 |
| 8π | ||
P+2*(16− | −4√3)+4π=16 | |
| 3 |
| 16π | ||
P+32− | −8√3+4π=16 | |
| 3 |
| 4π | ||
P=8√3+ | −16 | |
| 3 |
| 2π | ||
S=4√3+ | −8 | |
| 3 |
| 44 | ||
S≈4*1.73+ | −8=6.92+2.09−8=1.01 | |
| 7*3 |
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