Answer:
The radius of circle B is 6 times greater than the radius of circle A
The area of circle B is 36 times greater than the area of circle A
Step-by-step explanation:
we have
<em>Circle A</em>

The radius of circle A is
-----> the radius is half the diameter
<em>Circle B</em>

Compare the radius of both circles


The radius of circle B is six times greater than the radius of circle A
Remember that , if two figures are similar, then the ratio of its areas is equal to the scale factor squared
All circles are similar
In this problem the scale factor is 6
so

therefore
The area of circle B is 36 times greater than the area of circle A
Answer:
r = 7.5
Step-by-step explanation:
Circle equation: 
Since we are already give <em>r²</em>, we simply just take the square root of 56.25, and we should get 7.5 as our final answer!
Answer: either of two angles whose sum is 180°.
Step-by-step explanation:
The correct answer is option B. If two congruent angles form a linear pair, then <span>they are both right angles. </span>Two figures are said to be congruent when they
have the same shape and size or if one object is a mirror image of the other
object.