I need help with these please!!!1. which of the following will pass through a vertex of a triangle? (there are 3 answers)a. altitude b. perpendicular bisector of a sidec. midsegment d. angle bisectore. medianf. an inscribed circle2. which of the following are always perpendicular to a side of a triangle? (2 answers)a. altitude b. perpendicular bisector of a sidec. midsegment d. angle bisectore. medianf. an inscribed circle3. which of the following go through the midpoint of the side of a triangle? (2 correct answers)a. altitude b. perpendicular bisector of a sidec. midsegment d. angle bisectore. medianf. an inscribed circle4. which of the following is the point of concurrency of the medians of a tirangle?a. the incenterb. the circumcenterc.the orthocenterd.the centeroid