How is this.Yeh kya hai. please give me answer of this question
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Answer:
π(3r1² + r2²)
Step-by-step explanation:
First rearrange the equation...like r1 together and r2 together...
2πr1² + πr1² + 2πr2² - πr2²
Simplify....
= 3πr1² + πr2²
Take the common out i.e. π
= π(3r1² + r2²)
Hope it helps you:)
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