The hypotenuse of a right-angled triangle is 30cm. One side is 24cm. Find the length of the other side.

We can use the Pythagorean theorem to solve for the length of the other side of the triangle:

c^2 = a^2 + b^2

where c is the hypotenuse and a and b are the other two sides.

Substituting the given values, we get:

30^2 = 24^2 + b^2

Simplifying and solving for b, we get:

900 = 576 + b^2

b^2 = 324

b = sqrt(324) = 18

Therefore, the length of the other side of the triangle is 18cm.

Two ships leave port at 12:00 noon. One sails east at 10km/h and the other south at 12km/h. How many kilometres are they apart at 12:30pm (Correct to 1 decimal place)