Cómo se llama un ángulo que mide exactamente 90°

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?