The side length of a square is increasing at a rate of 15 millimeters per second. At a certain instant, the side length is 22 millimeters. What is the rate of change of the area of the square at that instant (in square millimeters per second)?

Step-by-step explanation:

From the question we are told that

Increase rate  

Length L=millimetre

Generally the area of  the square is given by

Therefore

Generally rate of change of area is given as

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.