This is the 2011 Math Challenge for Grade 6 questions 26-50. Questions 1-25 can be found **here**.

26.) A pyramid-like circus tent has a 32 m by 28 m rectangular base. If it is 15 m high, what volume of air does it enclose?

Answer:

Solution: v = (lwh)/3

v = (32 × 28 × 15)/3

v = (13440)/3

v = 4480 cu m.

27.) The parallel sides of a trapezoidal farm are 210 m by 150 m. If they are 120 m apart, what is the area of the farm in hectares?

Answer: 2.16 hectares

Solution: A = ((a+b))/2 h

A = ((210+150))/2 120

A = 360/2 (120)

A = 21600 sq m

Convert meter to hectares = 2.16 hectares