Question

IF the Radius of a circle is 1 unit.If its diameter is increased by 100 percentage.Then its area is increase by:
a.150 percentage.
b.300 percentage
c.250 percentage.
d.200 percentage.
Anyone pls.expalinn ​

Answer 1

Answer:

$\boxed{\text{B. 300 percent}}$

Step-by-step explanation:

$\text{Radius(R) = 1 unit}$

$\text{Diameter(D) = 2 units}$

$\boxed{Area = \pi r^{2}}$

$\boxed{Therefore, Original Area(OA) = \pi}$

$\text{Diameter is increased by 100 percent}$

$\text{New Diameter = 4 units}$

$\text{Therefore, new R = 2 units}$

$\boxed{Area = \pi r^{2}}}$

$\boxed{Therefore, new Area(NA) = 4\pi}$

$\text{We need to find x in: OA + x percent of OA = NA}$

$--> \pi + \frac{\pi x}{100} = 4\pi\\\\--> 100\pi + \pi x = 400\pi \\\\--> \pi x = 300\pi \\\\--> \boxed{\text{Answer: x = 300 Percent}}$

Hope this helps! If it does, feel free to mark it brainliest! Thanks :D

Answer 2

Answer:

hloo bruh

Step-by-step explanation:

edaaa kozhiii

nee evidenna?

sryy not a maths expert..

njn ernklm machanee

pinne enthoke unde ?

follow @_the_silent_angel_

ente insta fake account...