Question

वर्तुळाची त्रिज्या40 % मी वाढली तर क्षेत्रफळ किती टककयानी वादेल

Answer 1

Answer:

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Answer 2

Answer:

154 cm²

Step-by-step explanation:

40% = 40/100 :-- 2/5

वृद्धि := 7 की हुई है

वृत का क्षेत्रफल = πr²

: —:. ²²/7 ×7×7 = 154 cm²