11. Rombul ABCD are latura de 10 cm şi măsura unghiului obtuz de 1500 a) Determinaţi perimetrul rombului.
b) Arătaţi că patrulaterul MNPQ ale cărui vârfuri sunt mijloacele laturilor rombului
este dreptunghi.
c) Calculaţi perimetrul dreptunghiului MNPQ de la punctul b).

Va rog sa ma ajutati la punctul c).

Find a conversion factor between square centimeters and square meters. write it in three forms. square centimeters = 1 square meter

Can anyone with some algebra 1 homework? : )

Two trains leave a station on different tracks. the tracks make an angle of 130°, with the station as a vertex. the first train travels 100 km and makes its first stop at point a, while the second train travels 200 km and makes it first stop at point b. how far apart are the trains when both are at their first stop? round the answer to the nearest integer. a) 65 km b) 139 km c) 224 km d) 275 km