Find the value of x in each triangle. show your work on a separate piece of paper

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x = 70°

Step-by-step explanation:

the interior angle which is supplemental to 140° is 40°

the sum of the interior angles of any triangle is 180°

so:

180° = 40° + 2x

subtract 40° from each side of the equation:

2x = 140°

x = 70°

false

Step-by-step explanation: Isosceles triangle are triangles with two equal sides.

A right angle triangles can be have two equal sides or three unequal sides. That is a right angle triangle can be an isosceles triangle or a scalene triangle.