Question

The area of a circle is given by the expression 9πx² - 12πx + 4π. Find the radius of the
circle, when x = 4 cm.
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Answer 1

Answer:

Step-by-step explanation:

C2/(4π) = 12.572/4π = 158/(4 × 3.14) = 158/(12.56) = 12.57 square cm.

Answer 2

Answer:

hope this answer helps