1. ANSWERS WILL BE IN SQUARE UNITS
6.8
Area of a circle
A = p r2
ANSWERS WILL BE IN SQUARE UNITS

2. Find the area. 10 in 7.6 cm 181.5 square cm or 57.76p sq.cm
78.54 square in
or 25p sq. in.

3. A = pr2 C = 2pr A = p 52 10p = 2pr A = 25p or 5 = r A = 78.54 in2
If S has a circumference of 10p inches, find the area of the circle to the nearest hundredth.
A = pr2
C = 2pr
A = p 52
10p = 2pr
A = 25p or
5 = r
A = in2

4. SECTOR: R Q O

5. R
6 cm
60° Q R
7 cm Q
120 °

6. Find the area of the shaded region.
A = p22
A = p82
A = p4
A = p64
2 in
A = in2
A = in2
6in
A shaded = A – A= =
60p or in2

7. SEGMENT

8. R Q
12 yd