Question

If tan 2A = cot(A -18°), where 2A is an acute angle, find the value of A.
20. Find the area of the shaded region in the given figure, where arcs drawn with centres A, B, C and D
intersect in pairs at mid-points P, Q, R and S of the sides AB, BC, CD and DA respectively of a square
ABCD of side 12 cm. (Use x = 3.14)
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Answer 1

Step-by-step explanation:

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