an object is placed at a distance of 20cm from concave lens of focal length 20cm . at what distance is the image formed from the lens?also find the magnification of the image​

The meseta in spain is a a. navigable river b. castle c. coastal plain d.plateau

The pyramid has a square base that us inscribed in the circular base of the cone. draw an image of the composite shape of the base. 2) if the side length of the square base is 8 units long, what is the diameter of the circular base of the cone from the picture in number 1

In 1200 bce, the egyptian empire was declining as the civilization was beginning in mesoamerica. a. maya b. oaxaca c. olmec d. teotihuacan