Answer:

Step-by-step explanation:
we know that the circumference is equal to

we have

substitute


Answer:
Part 1) Triangles ABC, DBG, DEF and BEH are similar
Part 2)
Step-by-step explanation:
Part 1)
we know that
If two triangles are similar, then the ratio of its corresponding sides is equal and its corresponding angles are congruent
In this problem Triangles ABC, DBG, DEF and BEH are similar, because its corresponding angles are congruent by AA Similarity Theorem
Part 2)
Remember that
If two triangles are similar, then the ratio of its corresponding sides is equal
therefore
The circumference of the circle is 40π. Hope it help!
Answer:
The slope is 5/1 or 5
Step-by-step explanation:
Hope this helps!