what is the height of a lamp whose two radii are 20cm and 30cm and slant height is 40cm respectively?

Answer 1

The height of the lamp can be found using the Pythagorean theorem. Let's call the height "h". Then we have:

h^2 = (slant height)^2 - (radius)^2
h^2 = 40^2 - 30^2
h^2 = 1600 - 900
h^2 = 700
h ≈ 26.46 cm

Therefore, the height of the lamp is approximately 26.46 cm.