why don't we cind too many reptiles in the polar region
If R1 and R2 are two congruent regions, then area of R1 is __________ area of R2.
If the sum of the areas of two circles with radii R1 and R2 is equal to the area of a circle of radius R, then :
The total area of a cylinder is 100Ļ. If r=h, find r.