Problem 6.1 Diagonal
The following circle is centred at O and has a radius of 5 cm as
represented by the line OP. The rectangle OABC is drawn
within the circle.
a. What is the length of the line AC?
b. Explain how you obtained your answer.
Problem 6.2 A Small Boat
Two teachers and two students need to cross a canal. They have a small
boat that can carry only one teacher or two students. What is the least
number of trips required to take every one across?
Problem 6.3 Number of Triangles
How many triangles are there in each of the following figures?
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