Answer: 41°
Step 1: Write an equation
To start off, we will need to write an equation. We are told that this is an isosceles triangle, and are asked to use our knowledge of this shape to solve. An isosceles triangle has two angles that share the same degree. In this case, we can see that these are the bottom two angles, one of which is labeled as x. This means that the equation will be 98, in addition to 2x, equaling 180. This is because in a triangle, each angle will come together to equal 180. Let’s formally write the equation now.
98+ 2x= 180
Step 2: Solve
All we have left is solving the equation. Let’s rewrite the equation to start.
98+ 2x= 180
Now let’s work to isolate x. To start, we need to move the constant to the right side. Let’s subtract 98 from each side.
98+ 2x= 180
2x= 82
Great! In the final step, we can find the value of x. To do so, we need to divide each term by 2. This will give us our answer.
2x= 82
x= 41
X is equal to 41°. Hope this helps! Comment below for more questions.