Answer:
i think its 30
Step-by-step explanation:
perimeter is the sides added together
R^m ÷ r^n is equal to r^(m-n).
For example, 2^5 <span>÷ 2^3 = 2^2.
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Is that what you mean?
Answer:


Step-by-step explanation:
It is important to remember that, by definition, the measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles.
In this case we can idenfity that the angle
is an exterior angle of the triangle QRT. Then:

Where:

Substituting values and solving for "x", we get:

Then:

The sum of the interior angles of a triangle is 180°, therefore:

Solving for
, we get:
