Two angles of a triangle each measure 70°. What is the measure of the third angle in degrees?

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We'll begin by recalling the fact that the sum of the angles of triangle is of 180 degrees.

Since the two angles of triangle measure each 70 degrees, then we'll get:

70 + 70 + x = 180

140 + x = 180

x = 180 - 140

x = 40 degrees

**The third angle of the isosceles triangle is x = 40 degrees.**

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