Ngoài hình tròn thì Hình nào có vô số trục đối xứng

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

Shape a is congruent to shape , as shown by a reflection across the y-axis and then a translation down units. shape b is congruent to shape , as shown by a reflection across the y-axis and then a translation down units.

Six random samples were taken each year for three years. the table shows the inferred population for each type of fish for each year.