For an isosceles triangle, the degree of an angle is five fifths of the sum of its internal angles. What are the three internal angles of this triangle? Come on, hurry up

180×5/12＝75
If 75 is the top angle, then the base angle is (180-75) △ 2 = 52.5
If 75 is the base angle, the other base angle is 75, and the top angle is 180-75 × 2 = 30

Given that the sum of a top angle and a base angle of an isosceles triangle is 110 degrees, what is the degree of its top angle?

According to the fact that the sum of the interior angles of the triangle is 180 degrees, the remaining unknown base angles are 180-110 = 70 degrees. Then, according to the equality of the two base angles of the isosceles triangle, we know that the two base angles are 70 degrees. According to the sum of the internal angles is 180, the top angle degree is 180 minus the two base angles, that is 180-70-70 = 40 degrees

There is an isosceles triangle. The degree ratio of its two angles is 1:2. What kind of triangle can this triangle be classified by angle?

1+1+2=4，
180×2
4 degrees (90 degrees),
The triangle is a right triangle;
Or: 1 + 2 + 2 = 5,
180×2
5 = 72 degrees,
The largest angle is 72 degrees, which is an acute angle, so the three corners of the triangle are acute angles, that is, the triangle is an acute angle triangle;
Answer: the triangle is a right triangle or an acute triangle

An isosceles triangle, the degree ratio of the top angle to the base angle is 4:1, how many degrees is the top angle of this triangle

180°÷（4+1+1）×4=120°
A: the top angle of this triangle is 120 degrees

The ratio of the degree of a base angle to a vertex angle of an isosceles triangle is 4:1______ Degree

180°×4
4+4+1，
=180°×4
9，
=80°；
A: the base angle of this triangle is 80 degrees
So the answer is: 80

Mischievous bought an isosceles triangle kite. Its top angle is 40 ° and what is its bottom angle?

（180°-40°）÷2，
=140°÷2，
=70°；
A: one of its base angles is 70 degrees

In an isosceles triangle, the degree of the base angle is a. what is the top angle of the isosceles triangle?

Because it's isosceles triangle
So both base angles are the same = a
I also know that the triangle is 180
So the vertex angle is 180-2a

To know that the ratio of the two internal angles of an isosceles triangle is 2:1, find the degree of the vertex angle of the isosceles triangle?

Two cases
If the top angle is x, then the base angle is 2x or 1 / 2x
According to the triangle interior angle sum theorem
2X + 2x + x = 180 or x + 1 / 2x + 1 / 2x = 180
The solution
X = 36 or x = 90
A: the apex angle is 36 ° or 90 °

For an isosceles triangle, the ratio of its top angle to its base angle is 1:4. The degrees of the three inner angles of the triangle are (), (),,,, respectively

1+4+4=9
Vertex angle: 180 ° / 9 × 1 = 20 °
Base angle: 20 °× 4 = 80 °
The answer is 20 degrees, 80 degrees and 80 degrees respectively

There is an isosceles triangle. The ratio of the top angle to the bottom angle is 1:4. The degrees of the three inner angles of this triangle are (), (), and () Everybody, answer quickly

There is an isosceles triangle. The ratio of the top angle to the bottom angle is 1:4. The degrees of the three inner angles of the triangle are (20), (80) and (80) respectively
The top corner is 4:4
180÷(1+4+4)=20
Top angle: 20
Base angle: 20 × 4 = 80

For an isosceles triangle, the degree of an angle is five fifths of the sum of its internal angles. What are the three internal angles of this triangle? Come on, hurry up