In each of the following find the value of a

- Find the value of the unknown in each of the following right angled triangles
- Find the value of a and b in each of the following
- In each of the following figures find the value of x and y
- In each of the following find the value of k for which the points are collinear
- In the following figure find the value of angle bcn
- In the following figure find the value of angle oab
- In the following find the value of x and y
- In each of the following two polynomials find the value of a if x a is a factor
- In each of the following y varies directly as x find the value as indicated
- Find the value of x in each of the following angles