What is a reasonable estimate for the circumference of a circle with a radius of 12 inches? a. c≈36in. b. c≈72in. c. c≈144in. d. c≈432in.

B. C≈72in

Step-by-step explanation:

Circumference = pi * d

Where d is the diameter

d = 2*radius

d =2 *12

d =24

C = pi*24

Let pi be approximated by 3.

C ≈ 3.*24

C ≈ 72

1. 16.64

a^2+b^2=c^2

pr^2=pq^2+qr^2

pr^2=14^2+ 9^2

pr^2=196+81

pr= sqr root of 277

16.64

2. 11.31

c^2-a^2=b^2

18^2- 14^2=b^2

b^2=324-196

b=sqr root of 126

b=11.31

hope it ! (btw im in connections academy to, good luck! )