Question

Find the circumference of each circle, both in terms of pi and to the nearest tenth. Use 3.14 for pi.
1. circle with diameter 4 m                                   a. 25.1m
2. circle with radius 9 m                                      b. 12.6m
3. circle with radius 4 m                                       c. 9.4m
4. circle with radius 5.5 m                                     d.56.5m
5. circle with diameter 3 m                                   e. 34.5m
                                                                               f. 25.7m




Find the area of each circle, both in terms of pi and to the
nearest tenth. Use 3.14 for pi.

1. circle with diameter 6 m a. 28.3m

2. circle with radius 9 m                                                 b. 50.2m
3. circle with radius 5                                                      c. 18.1m
4. circle with diameter 8 m                                               d. 254.3m
5. circle with radius 3.1 m                                                  e. 30.2m
                                                                                           f. 78.5m


Can some one please help me math the problems to the correct answer. If u can can you please match the like this 1A or 5E. That was an example and please tell me if it the first r sec half. Its due tonight in an hur so please i will mark you as a brainliest also

Answer 1

You times pi by the diameter
first set of answers are
1. 5.1
2 56.5
3 25.1
4 34.5
5 9.4

You times pi by r^2
second set of answers are
1 28.3
2 254.3
3 78.5
4 50.2
5 30.2