Find the area of shaded region. Round to the nearsest tenth? Helppppppp?

Question

it is s inches on the base and 5 on the sides which is also the diameter of that circle on the right. oh yea heres a little picture of it. http://i17.tinypic.com/5256dud.jpg

yea its little.

but thats what it looks like

how do i do it!!!!!!!!!!!!!!!!!!!!!!!!

SIX INCHES ON BASE i forgot to put

yeaaaa (to orinico)

Answer 1

So is that a rectangle of 6x5 inches with a semicircle cut out of it (radius 2.5 inches) ?

Shaded area = area of rectangle - area of semicircle

so area of rectangle = 6x5 sq in

area of semi circle = (1/2) x (pi.r^2)
where r (radius) = 2.5in

= (1/2) x (5/2) x (5/2) x pi
= 25/8 x pi

pi approx = 3.14

so your area is roughly 20 sq in

Answer 2

Rectangle - 1/2 circle

5(6) = 30 for rectangle

1/2 circle = 1/2 pi r^2 = 1/2 pi (5/2)^2
1/2 pi (25/4) = 25/8 pi

30 - 25/8 pi or 30 - 9.81 = 20.19

Answer 3

Required area = Area of rectangle - area of a semicircle with the length as diameter
=l*b- 1/2*pi* (l/2)*(l/2)

Answer 4

Just find the area of the half circle (I hope you know the formula of the area of a circle using the radius).Divide the area of the circle by half, then subtract that from the area of the rectangle that the circle is "eating into".