un aliaj de platina are titlu de 0,800 si contine 1968 g de platina pura. Aflati masa aliajului. E urgent!!!!!!!!!!!!!!!!!!!1
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Since the lengths of the segments AD=PD are equal that means that the triangle is an isosceles triangle. This also means that the angles A and P (in the triangle) are equal.
This also means that the angle P' (the one inside the quadrilateral) is equal to:
Now, if we extend the sides DP and CB we notice that the angles P' and Q
are equal
The only way that this angles can be equal is if the line segments DP and CB are parallel, this comes from the fact that two alternate interior angles are equal if and only if the lines are parallel.
For this case we have to:
Let
So:
We have the solution will be given by:
Where:
Substituting:
The solutions are:
Returning the change:
Answer:
Answer:
Follows are the solution to this question:
Step-by-step explanation:
Please find the attached file for the complete solution.
