
A. Area of given figure = 280 + 77 = 357 cm²
B. length of semicircle = 22 cm
-2, 1/2, 1
Simplify down all the way and get your answer
Mark brainliest please
ANSWER

EXPLANATION
The sum of the first
terms of a geometric sequence is given by;

Where
, is the number of terms and
is the first term.
When
, we have
, we get;





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