How many times does 54 go into 186?

How do i do this activity, is appreciated

The area of square garden is 300m squared. how long is the diagonal?

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?