Mathematics
Assertion (A): If BC = 14 cm, AB = 14 x 4 cm
Reason (R): AB = 4 x 2r = 4 x 14 cm
A is true, but R is false.
A is false, but R is true.
Both A and R are true, and R is the correct reason for A.
Both A and R are true, and R is the incorrect reason for A.
Mensuration
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Answer
Given, BC = 14 cm
From figure,
Diameter (d) = 2r = 14 cm
AB has 4 circles (3 circles and 2 semi-circles).
AB = 4 x diameter of one circle = 4 x 2r = 4 x 14 cm = 56 cm.
∴ Both A and R are true, and R is the correct reason for A.
Hence, option 3 is the correct option.
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