​In Right Triangle ,Point Is Moving Along a Leg

question 116

Multiple Choice

​In right triangle ,point is moving along a leg of the right triangle toward point at a rate of cm/sec and point is moving toward point at a rate of cm/sec along a line containing the other leg of the right triangle,as illustrated in the triangle shown below.What is the rate of change in the area of ,with respect to time,at the instant when cm and cm? ​ ​

• A)-4.48 cm²/sec
• B)-3.36 cm²/sec
• C)-3.2 cm²/sec
• D)​​-4 cm²/sec

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