geometry

Hello. I shall allow someone else to solve the question 62. I am unable to solve it.

63) We are given a right triangle prism with an area of 450. L=15, and B=5.

This means the (5*15*(AB))/2 = 450 so 900 = 75(AB), so AB = 900/75 = 12. 

Notice how we are given that there is a right triangle. This means that we can apply the Pythagorean Theorem. a²+b²=c². a = 5, b = 12. If you know the basic Pythagorean Triples, then you will remember the (5, 12, 13) one. 

This means that our missing side is 13.

62.      IF the line BD is passing through the center of a circle, then the angle x must be 90 degrees!

           IF lines BC and CD are congruent, then the value of angle x is 66 degrees

(btw, those suggested answers are there to be ignored)