3PLSS NEED HELP.

Step-by-step explanation:

According to the pythagorean theorem, the formula for the right angle hypotenuse is c² = a²+ b². The values we have here are 28 and 32, which can be substituted into the a and b, giving you c² = 28² + 32². We can substitute the variable c with x just so you don't get confused. This leaves you with x² = 28² + 32². 28 x 28 is 784 and 32 x 32 is 1024, which gives you x² = 784 + 1024. 784 plus 1024 is 1808, so you now have x² = 1808. You must simplify further by doing the square root of 1808, which is , so you now have x =  . Therefore, the hypotenuse's length is .

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.

the answer is 8.64

step-by-step explanation: