Question

Julia lined up the interior angles of the triangle along the line below. What is the answer?

Answer 1

30 degrees is your answer.

Answer 2

Answer:

Hence the measure of  A $38\degree$

Step-by-step explanation:

we need to find measure of angle A of the given triangle ABC in provided figure

In provided figure

$\angle A = ? ,\angle B = 30\degree \ \text{and}\ \angle C = 112\degree$

Since, sum of interior angles of triangle is $180\degree$

In triangle ABC

$\angle A + \angle B + \angle C=180\degree$

$\angle A + 30\degree+112\degree=180\degree$

$\angle A + 142\degree=180\degree$

Subtract both the sides by $142\degree$

$\angle A =180\degree -142\degree$

$\angle A =38\degree$

Hence the measure of  A $38\degree$