Acylinder has a height of 16 cm and a radius of 5 cm. a cone had a height of 12 cm and a radius of 4 cm . if the cone is placed inside the cylinder as shown, what is the volume of the air space surrounding the cone inside the cylinder?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

Consider the first four terms of the sequence below. what is the 8th term of this sequence?

Marking brainliest for original answer.. are these two triangles similar? how can you tell?