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3 years ago

your friends says that an exterior angle can never be complementary to any of the interior angles in a triangle?

Mathematics

2 answers:

Dafna1 [17]3 years ago

7 0

Answer:

Two angles are complementary if their addition is equal to 90°.

As you may know, the exterior angle is equal to the addition of both opposite interior angles, so suppose that you have a triangle with two angles of 30° and one of 120° (because the addition of the 3 interior angles must be equal to 180°)

In this case, the exterior angle that is opposite of both interior angles of 30°, is equal to their sum, so this angle has 30° + 30° = 60°

Now, this angle of 60° would be complementary with bot 30° interior angles.

So given the right triangle, an exterior angle can be complementary to some interior angles.

rusak2 [61]3 years ago

6 0

Exterior angles are complementary to the opposite interior angle

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1) The correct option is C. (2) The correct option is D. (3) The correct option is B. (4) The correct option is D. (5) The correct option is D.

Step-by-step explanation:

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$m=\frac{y_2-y_1}{x_2-x_1}$

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Therefore option D is correct.

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The pair of points (6, y) and (10, -1). The slope is $\frac{1}{4}$ .

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