Question

3. The angle measures of a triangle are shown in the diagram. What is the
value of x?
(HINT: If you aren't able to solve it using an equation, you can plug in your answer choices
to see which one gets you to the correct tolal for the interior angles of a triangle.)
500
((2x)"
30°

Answer 1

Answer:

x=50

Step-by-step explanation:

angles in a triangle add up to 180 degrees

hence, 50 + 2x + 30 = 180

solving for x

50 + 2x + 30 = 180  

combine like terms

2x + 80 = 180

subtract 180 from both sides

2x = 100

divide both sides by 2

x = 50

Answer 2

Answer:

x=50

Step-by-step explanation:

50°+30°+2x = 180° (sum of all angles of a triangle)

or, 2x +80°= 180°

or, 2x = 180°-80°

or, 2x=100°

or, x= 100°/2

therefore,x°=50°

Again,

2x = 2×50°=100°

(would appreciate it if you could mark me the brainliest:))