Find the measures of the angles of an isosceles triangle with a vertex angle of 42 degrees

69°, 69°, and 42°

Step-by-step explanation:

Isosceles triangles have three angles -- one vertex angle and two base angles.

The base angles have the same measure and the vertex angle has a different measure.

Remember all triangles' interior angles sum to 180°.

If the vertex angle is 42°, then the two base angles combined are:

180° - 42° = 138°

Since the base angles are the same, each base angle is:

138° ÷ 2 = 69°

Therefore the angles in the triangle measure 69°, 69°, and 42°.

step-by-step explanation:

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b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )