An architect is making a plan for a new circular playground. if the playground has a diameter of 64 feet how much fencing needs to go up to keep the kids in the circle

Step-by-step explanation:

we know that

The circumference of a circle is equal to

we have

substitute

assume

Round to the nearest whole number

im not sure

step-by-step explanation:

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.