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# What is the measure of a base angle?

## What is the measure of a base angle?

Interior angles So the two base angles must add up to 180-40, or 140°. Since the two base angles are congruent (same measure), they are each 70°. If we are given a base angle of say 45°, we know the base angles are congruent (same measure) and the interior angles of any triangle always add to 180°.

## What is the measure of a base angle of an isosceles?

In an isosceles triangle, the base angles have the same degree measure and are, as a result, equal (congruent). Similarly, if two angles of a triangle have equal measure, then the sides opposite those angles are the same length.

## What is the measure of each base angle of an isosceles triangle if its vertex angle measures 28o?

If the vertex angle is 28 degrees, then each base angle is 76 degrees.

## What is the measure of each base angle of an isosceles triangle if its vertex angle measures 36 degrees and its 2 congruent sides measure 14 units?

The sum of base angles =180–36=144 degrees. Each angle =144/2 = 72 degrees.

## What is the measure of each angle in an isosceles right triangle?

In a Isosceles Right triangle there is a 90 degree and the corresponding angles are equal and the sum should be 90 degrees so each corresponding angle is 45 degrees. Since the sum of angles of a triangle is 180 degrees.

## What is the measure of a vertex angle?

A vertex angle in a polygon is often measured on the interior side of the vertex. For any simple n-gon, the sum of the interior angles is π(n − 2) radians or 180(n − 2) degrees.

## What is the meaning of vertex angle?

Vertex (of an angle) Vertex (of an angle) The vertex of an angle is the common endpoint of two rays that form the angle.

## What are 3 sides of triangle?

Triangles can be classified according to the lengths of their sides:

• An equilateral triangle has three sides of the same length. An equilateral triangle is also a regular polygon with all angles measuring 60°.
• An isosceles triangle has two sides of equal length.
• A scalene triangle has all its sides of different lengths.

## How do you use the Pythagorean theorem to classify triangles?

Classifying Triangles by Using the Pythagorean Theorem If you plug in 5 for each number in the Pythagorean Theorem we get and 50>25. Therefore, if a2+b2>c2, then lengths a, b, and c make up an acute triangle. Conversely, if a2+b2triangle….

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## How can you use the converse of the Pythagorean theorem to classify a triangle as a right triangle or not a right triangle?

The converse of the Pythagorean Theorem is: If the square of the length of the longest side of a triangle is equal to the sum of the squares of the other two sides, then the triangle is a right triangle.