Answer:
Circumfrence: 40.21
Radius: 6.4
Step-by-step explanation:
For radius, you only have to divide the diameter (in this case 12.8) by 2 which gives us 6.4
For Circumference, plug in the radius in the formula C=2π(6.4), and that gives us 40.21
Answer:

Step-by-step explanation:
we know that
If two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent
In this problem
Triangles FEG and FHJ are similar by AA Similarity Theorem
see the attached figure to better understand the problem
so

we have

substitute



Answer:
Option C. Side a 1.5 inches long, side b is 2 inches long and side c is 2.5 inches long
Step-by-step explanation:
The scale factor=4:1=4/1
Scale factor=(Scale drawing)/object
4/1=6/a
4a=6
a=6/4
A=1.5 inches
4/1=8/b
4b=8
b=8/4
B= 2 inches
4/1=10/c
4c=10
c=10/4
C=2.5 inches
Therefore, side a is 1.5 inches long and side b is 2 inchea long and side c is 2.5 inches long
The greater number is -2 since it's closer to 0.