The angles of a triangle are equal to 5 + 10, 8 − 20 and 3 + 30. Find the value of x

Find and classify the slope of the line through each pair of points (2,,-16)

For an experiment, a penny is tossed. at the same time, a spinner with 8 congruent sections numbered 1–8 is spun. how many possible outcomes are there for the experiment?

The diagram shows a 7cm by 6cm rectangle based pyramid. all the diagonal sides - ta, tb, tc and td are length 10cm. m is midpoint of rectangular base. work out height mt to 1 decimal place