Answer:
40
Step-by-step explanation:
ABD-CBD=ABD
70-30=40
The formula for an infinite geometric sequence is the following:

Just substitute the values of

and r into the formula.



Therefore, the answer is 20.
Answer:
7.10299
Step-by-step explanation:
is best evaluated in a calc.
Answer:
the ASA similarity theorem
Step-by-step explanation:
As seen in the picture, the similarities are 2 sides and the angle between them
So the similarity is ASA, second answer choice