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Y^2=20X ലാക്റ്റസ് റെക്ടത്തിന്റെ നീളം കണ്ടെത്തുക

A10

B20

C15

D25

Answer:

B. 20

Read Explanation:

y^2 = 20x a = 24/4 = 5 ലാക്റ്റസ് റെക്ടത്തിന്റെ നീളം = 4a = 20


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