September 2018 1 40 Report

Proszę o pomoc w rozwiązaniu tych zadań zupełnie sobie z nimi nie radzę :(
Jeśli umiesz jedno rozwiąż jedno jeśli dwa to dwa, a jeśli wszystkie to będę bardzo wdzięczna :)
1. W romb wpisano okrąg . Punktstyczności okręgu z bokiem dzieli bok na odcinki długości 4 cm i 9cm. Oblicz długość przekątnych i wysokość rombu.
Ma wyjść:h=12 cm, d1=4 pierwiastek z 13 i d2= 6 pierwiastek z trzynastu.
2.Na okręgu opisano trapez równoramienny . Kąt rozwarty trapezu ma miarę 150 stopni , a odcinek łączący środki ramion ma 12 cm długości. Oblicz długość promienia okręgu.
Musi wyjść:3cm.
3. Odcinek łączący środki ramion trapezu ma długość 8 cm. Wiedząc że w ten trapez można wpisać okrąg , oblicz obwód trapezu.
Musi wyjść 32 cm
Błagam pomocy!!


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