157k views
1 vote
In the figure below, what is the measure of angle A ?




In the figure below, what is the measure of angle A ? ​-example-1

2 Answers

3 votes

Solution:

2x°+6x°+(2x+10)°=180°. [because sum of angle of a triangle is 180°]

Or,10x°+10°=180°

Or,x=180-10/10

Or,x=17°

Now,puttin' the value of x in A

= 2x°

= 2×17°

=34°

So,the measure of angle A is 34°.

Hope,itwill helpyaa:)

User Omer Khalid
by
4.5k points
1 vote

Answer:

34°

I hope its right...

Explanation:

[2x + 6x + 2x+10]°=180°{since sum of all the angle of a triangle is 180°}

=>[10x + 10]°=180°

=>10x=180°-10°

=>x°=170°÷10°

=>x°=17°

∴2x[i.e∠A]=2×17°

=34°

User Nick Steele
by
4.5k points