Class 8th maths ex 3.3 Qno 1​

Flashback to semester a. are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr? show your work.

Find the smallest number by which the given number should be divided to make a perfect cube(with steps or the answer will get reported) a.108 b.2187

Determine if the equation defines y as a function of x: 2xy = 1. yes o no