Question

Кут при вершині рівнобедреного трикутника дорівнює 72°. Знайдіть кут при основі цього трикутника.​

Answer 1

Ответ:

углы при оновании равнобедренного треугольника равны

сумма углов в треугольнике =180°

(180-72)/2=54°

углы при основании =54°

Объяснение:

Answer 2

Finding the Angle at the Base of an Isosceles Triangle

To find the angle at the base of an isosceles triangle, we can use the fact that the sum of the angles in any triangle is always 180 degrees.

Let's denote the angle at the vertex of the isosceles triangle as x. Since the triangle is isosceles, the other two angles at the base are also equal to each other. Let's call these angles y.

According to the given information, the angle at the vertex of the triangle is 72 degrees.

To find the angle at the base, we can subtract the angle at the vertex from 180 degrees and then divide the result by 2, since the other two angles at the base are equal.

So, the formula to find the angle at the base (y) is:

y = (180 - x) / 2

Substituting the given value of the angle at the vertex (x = 72), we can calculate the angle at the base (y):

y = (180 - 72) / 2 = 54 degrees

Therefore, the angle at the base of the isosceles triangle is 54 degrees.

Please let me know if there's anything else I can help you with!