A cone has a base radius of 5 cm and a height 12 cm calculate its surface area​

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?

What is the best estimate of the length of a football