The diameter of a semicircle is 6 meters. What is the semicircle's area?

The area formula: pi*r*r   (r stands for radius)

since diameter is given, must divide by two

6/2=3

pi*3*3=

=

28.27433

Since its a semicircle, must divide by two.

28.27433/2=

14.13716.....

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844

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.