The cross-section of a cannel is a trapezium in shape. If the cannel is 14 m wide at the top and 8 m wide at the bottom and the area of cross-section is 550 sq m, the depth of cannel is? Choose the correct answer: A) 76 B) 28 C) 50 D) 80 E) 25
1/2 * d (14 + 8) = 550   d = 50   Answer: 50
<result>C</result>
The cross-section of a cannel is a trapezium in shape. If the cannel is 14 m wide at the top and 8 m wide at the bottom and the area of cross-section is 550 sq m, the depth of cannel is?