The gradual wearing away or breaking down of rocks by abrasion is a type of blank weathering
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Answer: PR=14.5.
Step-by-step explanation:
1. If the area of PQR is 50, then (QR*PQ)/2=50, so QR*PQ=100 (the area of a triangle is the base*height/2).
2, The tangent of an angle is (the opposite side)/(the adjacent side). So, the tangent of angle P=QR/PQ. Angle P is 36 degrees, and the tangent of 36 degrees is 0.726542528. We can substitute this into the equation we found to get 0.726542528=QR/PQ.
3. Using the equations we found in Steps 1 and 2, we can create a system of equations:
We can solve this system of equations to get PQ=11.7319 and QR=8.52375.
4. Using Pythagorean theorem, we can say that PR^2=QR^2+PQ^2. If we substitute the values of PQ and QR into the equation, we can come to the conclusion that PR=14.5014410206, which simplifies to PR=14.5.