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If an interior angle of an isosceles triangle is 80 degrees, how many degrees or degrees does the top angle differ from the base angle?
60 or 30 degrees
The top angle of an isosceles triangle is 80 ° and its base angle is______ Degree, this is a______ Triangle
（180°-80°）÷2，
=100°÷2，
=50°；
Then the triangle is an acute triangle;
A: the base angle of this triangle is 50 ° and this is an acute triangle
So the answer is: 50, acute angle
Is an isosceles triangle with an obtuse angle called an obtuse triangle or an isosceles triangle?
An isosceles triangle with an obtuse top angle is called an isosceles triangle
It is known that an isosceles triangle has an angle of 30 ° and if it is an obtuse triangle, what is its top angle?
This triangle is an obtuse angle isosceles triangle. The obtuse angle is greater than 90 ° and because the two base angles of the isosceles triangle are equal, the two base angles are 30 ° and the top angle = 180-2x30 = 120 °
The base angle of an isosceles triangle is 80 ° and its top angle is______ .
Because an isosceles triangle has a base angle of 80 degrees,
So the vertex angle = 180 ° - 80 ° × 2 = 20 °
So the answer is: 20 degrees
An isosceles triangle has a base angle of 80 degrees. What is its top angle
180-80*2=20
The top angle of an isosceles triangle is 80 degrees. How many degrees are its two base angles?
Fifty
The top angle of an isosceles triangle is 80 degrees?
Let its base angle be X
80°+2X=180°
2X=180°- 80°
2X=100°
X=50°
A: its base angle is 50 degrees
The top angle of an isosceles triangle is 80 degrees, and one of its base angles is (), is it still a () triangle?
The top angle of isosceles triangle is 80 degrees, one of its base angles is (50), it is also a (acute angle) triangle
If the sum of the top angle of an isosceles triangle and the sum of a base is 130 degrees, what is the top angle of the isosceles triangle
80 degrees
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