The center of the circle that can be circumcised about a scalene triangle is located by constructing the
a)medians of the triangle
b)altitudes of the triangle
c)perpendicular bisectors of the side of the triangle
d)angle bisectors of the triangles

  c)  perpendicular bisectors of the side of the triangle

Step-by-step explanation:

Each side of the triangle is a chord of the circumcircle. The center of a circle is at the meeting point of the perpendicular bisectors of chords of the circle.

The center of the circumcircle is located where the perpendicular bisectors of the sides meet.

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.