Advertisements
Advertisements
प्रश्न
If the radius of a circle is doubled, its area becomes ____________.
पर्याय
2 times
4 times
8 times
16 times
MCQ
रिकाम्या जागा भरा
उत्तर
If the radius of a circle is doubled, its area becomes 4 times.
Explanation:
original area = `pi "r"^2`
when the radius is doubled
New area = `pi (2 "x")^2`
`= 4 xx pi "x"^2`
area will increase 4 times.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
