How do I solve this inequality?
1 answer:
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Given:
A figure of a triangle.
To find:
The measure of angle A.
Solution:
Label the points in the figure as shown below.
In the below figure,
(Vertically opposite angles)
(Congregant angles)
Using exterior angle theorem in triangle ABC, we get
Isolate the variable term x.
Now, the measure of angle A is:
Therefore, the correct option is B.
The first step for solving this is to cancel equal terms on both sides of the inequality.
< 0
Now multiply both sides of the inequality by -2 and flip the inequality sign.
-2 × () > -2 × 0
Remember that multiplying two negatives together always equals a positive,, so the expression changes to the following:
2 ×
> -2 × 0
Reduce the numbers with 2.
x > -2 × 0
Any expression multiplied by 0 equals 0,, so the correct answer to your question will be:
x > 0
Let me know if you have any further questions.
:)
Now multiply both sides of the inequality by -2 and flip the inequality sign.
-2 × (
Remember that multiplying two negatives together always equals a positive,, so the expression changes to the following:
2 ×
Reduce the numbers with 2.
x > -2 × 0
Any expression multiplied by 0 equals 0,, so the correct answer to your question will be:
x > 0
Let me know if you have any further questions.
:)