Answer:
yes
Step-by-step explanation:
because area of sphere equals =
so if we doubled the radius the surface area will be doubled
Maria is purchasing a sweater marked 40% off. The original price of the sweater is $60. The sales tax is 6%, what is the total a
1 answer:
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the value of x is 8 cm.
<u>Step-by-step explanation:</u>
Correct Question : In the diagram, the radius of the outer circle is 2x cm and the radius of the inside circle is 6 cm. The area of the shaded region is 220π cm2. What is the value of x? Enter your answer in the box.
We have ,
the area of a circle = πr²
the outer circle area =
the inside circle area =
According to Question,
the outer circle area - the inside circle area = he shaded region
⇒
⇒
⇒
⇒
Therefore , the value of x is 8 cm.