Respuesta :

C) 12 degrees

Angle N corresponds to R, and 180-90-78=12, which is the measure of the missing angle.

Answer:

Assuming that the two triangles are the same, R = N and W = P which makes it C, or 12 degrees.

Step-by-step explanation:

To find the missing angle, you need to find the missing number in 180. Every triangle is equal to 180 degrees.

So you do 180 - 90 (The right angle) - 78 (the known angle of R and N)

This gives you 12 degrees.

Add it all back together to check it and make sure it equals 180 degrees, and your answer is indeed 12.

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