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O is the centre of the sector OAB, CD is another arc with centre O and radius r cm. DB = 2cm. If the area of ABDC is one third of the area of the sector OCD, find the value of r
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O is the centre of the sector OAB, CD is another arc with centre O and radius r cm. DB = 2cm. If the...
Mathematics, 06.06.2020 21:00
Mathematics, 06.06.2020 21:00