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I got 3 angles and they make 180° angle A is 6x - 10°. Angle B is 4x + 6°. And Angle C is 7x + 14°. What is X, What is Angle A, What is Angle B, And what is Angle C. Angle A and C are Acute Angles and Angle B looks like its either a Right Angle or an Obtuse Angle

I got 3 angles and they make 180° angle A is 6x - 10°. Angle B is 4x + 6°. And Angle-example-1
User Chu Yeow
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1 Answer

2 votes

We get x is 10°. So angle A is 50°, angle B is 46°, and angle C is 84°.

Explanation:

Step 1:

The sum of all the angles for a straight line is 180°. So the sum of the three given angles is 180°.

The angles are
6x-10^\circ,
4x+6^\circ, and
7x+14^\circ.

So
6x -10 + 4x +6+7x +14 = 180.


17x + 10 = 180.


17x = 170, x = (170)/(17) = 10.

So x = 10°.

Step 2:

Angle A
= 6x - 10^\circ = 60 - 10 = 50^\circ. Angle A is an acute angle.

Angle B
= 4x+6^\circ = 40+6 =46^\circ. Angle B is an acute angle.

Angle C
= 7x + 14^\circ = 70 + 14= 84^\circ. Angle C is also an acute angle.

User Jacolack
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4.7k points