Question

Из вершины развёрнутого угла BDM проведена биссектриса DE и луч DC так, что угол CDE равен 19 градусам. Какой может быть градусная мера угла BDC? Помогите плизззззззззззз)))))) Надо срочно!!!!!! Заранее спасибо)))))!!!!

Answer 1

Ну, вот))0
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Answer 2

Solution:

To find the degree measure of angle BDC, we can use the properties of angles in a triangle and the fact that the bisector of an angle divides the opposite side in the same ratio as the other two sides of the triangle.

Given: - Angle CDE = 19 degrees

We need to find: - Degree measure of angle BDC

Steps to Solve:

1. Use Angle Bisector Theorem: - The Angle Bisector Theorem states that in a triangle, an angle bisector divides the opposite side into segments that are proportional to the other two sides of the triangle.

2. Apply the Theorem: - Let's use the Angle Bisector Theorem to find the degree measure of angle BDC.

3. Calculation: - Let x be the degree measure of angle BDC. - According to the Angle Bisector Theorem, we have: - BD/DC = AB/AC

4. Substitute Known Values: - We know that angle CDE = 19 degrees. - So, we can use this information to find the degree measure of angle BDC.

5. Solve for x: - Using the given information and the Angle Bisector Theorem, we can solve for the degree measure of angle BDC.

Result:

The degree measure of angle BDC can be calculated using the Angle Bisector Theorem and the given information about angle CDE.

Let's proceed with the calculation to find the degree measure of angle BDC.