Sketch each triangle. Then, determine the unknown side and angles. If two solutions are possible, give both. a) In \( \triangle \mathrm{ABC}, \mathrm{AB}=15 \mathrm{~m}, \mathrm{BC}=5 \mathrm{~m} \), and \( \angle \mathrm{A}=20^{\circ} \).

26) En un triángulo \( A B C \), se traza la altura \( \overline{B H} \). SI: "D", "E" y "F" son puntos medios de \( \overline{A B} \); \( \overline{B C} \) y \( \overline{A C} \) respectivamente y se sabe que \( E F \) \( =6 \mathrm{~cm} \). Halle la medida de DH . a) 12 cm b) 14 cm c) 6 cm d) 8 cm e) 10 cm

Determine the equation of the parabola with focus \( (-4,5) \) and directrix \( x=16 \)

11. Adott az \( A B=4 \mathrm{~cm} \) szakasz. Vedd fel az \( A B \) egyenes egyik oldalán az \( E, F \) és \( G \) pontokat úgy, hogy \( E A=E B=3 \mathrm{~cm}, F A=F B=5 \mathrm{~cm} \) és \( G A=G B=7 \mathrm{~cm} \) legyen. Igazold, hogy: a) az \( E, F \) és \( G \) kollineáris pontok; b) a \( G E \) egyenes az \( A B \) szakasz felezőmerôlegese.

17. Найти уравнение плоскости, перпендикулярной оси оу и проходящей через точку \( A(1,-2,2) \). Построить плоскость.

7. Sachin lives in a multistoried apartment. One day he was flying his kite firmy the road in front of his apartment. He was at a distance of 8 m from the baseft Also, the kite was just touching the top of the apartment. The length of the stiment (a) Find the height of the building. (b) As per your opinion, which values are missing in Sachin?