In a triangle, ABC, P, Q and R are the midpoints of sides BC, CA, and AB respectively. If AC = 25 cm, BC = 30 cm and AB = 29 cm, find the perimeter of the quadrilateral ARPQ.
From a point in the interior of an equilateral triangle, perpendiculars are drawn on the three sides. If the lengths of the perpendiculars are ^@a, b,^@ and ^@c^@, find the altitude of the triangle.
While doing a science experiment in the physics lab, took 4 measurements of the temperature and wrote the average of those as an answer. If the measurements of the temperature are -1, -4, 2 and -3 then what is the final answer of her experiment?
can complete some work in 24 days, while can complete the same work in 12 days. They started the work together, and when the work was half complete, fell ill and had to finish the remaining work. How long did it take to complete the work?