For what value of X, 211X will be a perfect square?
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In an isosceles trapezium ______.
BD and CE are two medians of the triangle ABC. If EO = 7 cm, then the length of CE is
Select the odd word/letters/number/number pair from the given alternatives.
sin(A+B) - sin(A-B) is equal to
In ΔPQR measure of angle Q is 90°. If tanP = 4/3, and PQ = 1.5cm, then what is the length (in cm) of side PR?