If a parallelogram is a rectangle then the diagonals are similar collinear congruent perpendicular

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

Using the figure below, select the two pairs of alternate interior angles.a: point 1 and point 4 b : point 2 and point 3 c: point 6 and point 6d: point 5 and point 7

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges