Question

If the points A, O and B are collinear, find the value of x in each of the following figures:


Please answer with explanation​

Answer 1

Answer:

Step-by-step explanation:

As we can see that the sum of all angles formed will be 180 degree as it is a straight angle and straight angle =180 degree.

Now, in the figure given we already have 40 degree given. So we can subtract it from 180.

180-40 = 140 degree

Now this mean that the sum of 3x and x = 140.

Let's form the equation now.

3x + x = 140

4x = 140

x = 140/4

x = 35

Therefore, x equals 35 degree.

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