Triangles have a total of 180°. Use the triangle below to determine the the value of X.
2 answers:
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Answer:
Step-by-step explanation:
I assume that the last question should read "cosE"
First we need to find ∡PRQ. To do this we can use the fact that the sum of the interior angles of a triangle is 180°:
Now, we can use the fact that a strait line (like SRQ) is also 180°:
°
Now, we can use the fact that a strait line (like SRQ) is also 180°: