Textbook Page 80 Question 22

The hypotenuse of an isosceles right triangle has a length of 20cm. What is the length of each leg of the triangle? Provide your answer to the nearest tenth of a centimeter.

The side length of each leg of the triangle is 14.1 cm.

Textbook: Page 60, Question 13

A submarine was cruising at a depth of 153m. It then rose at 4.5m/min for 15 min.
   a) What was the submarine's depth at the end of this rise?
   b) If the submarine continues to rise at the same rate, how much longer will it take to reach the surface?



                                               A) 85.5m

                                           
                                    B) It would take 19 minutes for the submarine to reach the surface