Final answer:
The value of x in an isosceles triangle is 60° and the value of x in an equilateral triangle is also 60°.
Step-by-step explanation:
The value of x in an isosceles triangle can be found by using the formula for the sum of the angles in a triangle, which is 180°. In an isosceles triangle, two angles are equal, so we can set up an equation:
2x + x = 180
Combining like terms, we get:
3x = 180
Dividing both sides by 3, we find that the value of x is 60°.
In an equilateral triangle, all three angles are equal. Since the sum of the angles in a triangle is 180°, we can set up an equation:
3x = 180
Dividing both sides by 3, we find that the value of x is also 60°.
Learn more about Triangle Angles