7.) Find the 3rd angle of the first triangle, then
find the value of x.
600
400
(x)
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Answer:
Step-by-step explanation:
The sum of interior angles in a triangle is equal to 180 so the third angle in the first triangle is 180 - 60 - 40 = 80
The value of x is 40 because given triangles are have two pair of angles that are equal.