Work out the difference between 16/18 and 4/18

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

The base of a triangle is 8 1 3 meters and the height of the triangle is the fourth root of 16 meters meters. what is the area of the triangle?

On a cm grid, point p has coordinates (3,-1) and point q has coordinates (-5,6) calculate the shortest distance between p and q give your answer to 1 decimal place