the ratio of the measures of the angles in a triangle is 10:5:3. find the measures of the largest angle?

Find the total area for the regular pyramid ( follow the answer set up in the picture)

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Each equation given below describes a parabola. which statement best compares their graphs? x = 2y^2 x = 8y^2