Question

angle stv is a right angle.
the measure of angle stw is 35°.
the measure of angle wtv is x°.
what is the value of x?

Explanation:

Step1: Define right angle measure

$\angle STV = 90^\circ$

Step2: Relate angles in right angle

$x^\circ + 35^\circ = 90^\circ$

Step3: Solve for x

$x = 90 - 35$

Answer:

$55$