6) 32 pi - 32

]]>Use Pythagorass theorem and this formula:

where *d* is semicircle diameter / triangle side and *A* and is semicircle area. Thus

Hence the area of the third semicircle is 20.

]]>That link gets me to google's front page?

]]>https://www.google.com/search?tbs=sbi:A … tDeOQ2gUs#

the image is the one in the search

]]>5) I am getting that 7 1 x 1 cubes are removed so the resulting volume is 20

Where are the drawings? For instance #6, which area do you want?

]]>2. A rectangle contains two circles of radius 6 that are each tangent to the rectangle in exactly 3 points. If the distance between the centers of the circles is 10, what is the area of the rectangle?

3. The rectangle below has height 8 and width 9. What value of k would make the shaded triangle's area 12\frac12% of the rectangle's area?

4. A 4" by 6" by 8" rectangular solid is cut by slicing through the midpoint of three adjacent edges. What is the number of inches in the sum of the lengths of the edges of the tetrahedron that is cut?

5. A cube of volume 27 has 1 x 1 square holes drilled through the center of each face and passing through the center of the cube. What is the volume of the figure that remains?

6. The circle is inscribed in a square with sides 8 cm. What is the area of the shaded part in square centimeters? Express your answer in terms of \pi.

]]>