A vase with a circular base exerts a force of 13 N on a table with a pressure of 850 N/m2.
Find the radius of the base of the vase in cm to 2 dp.

Need on this geometry question. explain how you did it.

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Can someone check if i did this correct. it’s number 4 if you’re wondering.