on his way back, Thomas took the train. The distance travelled by the train is 328 miles. What is the average speed of the train
1 answer:
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To Find :
The value of side CD.
Solution :
Applying Pythagoras theorem in ΔABC :
....1)
Applying Pythagoras theorem in ΔACD and ΔCDB :
....2)
....3)
Adding equation 2 and 3, we get :
...4)
Solving equation 1) and 4), we get :
Therefore, length of CD is 6 .