Texas Mathematics Teacher Spring/Summer 2020 - 46

Breaking the Routine in Mathematics
Red Herring Problems

Solutions

A 10-ft ladder is leaning against a wall. The bottom of the ladder is 4 feet from the base of the wall, as
shown below.

Which of the following is closest to the distance from the top of the ladder to the base of he wall?
A. 9 ft.

B. 11 ft.

C. 6 ft.

D. 14 ft.

Two motorcycles start at the same point. One motorcycle travels 15 km due north and stops.
The second motorcycle travels 32 km due west and stops. Which value is closest to the distance
between the motorcycles when they stop?
F. 28.3 km

G. 47.0 km

H. 35.3 km

J. 21.9 km

The diagram below represents the side view of a bike ramp.

Which of the following is closest to the side view of x?
A. 37 in.

B. 32 in.

C. 25 in.

D. 20 in.

For the things of this world cannot be
made known without a knowledge of
mathematics.
	

46

| Spring/Summer 2020

~Roger Bacon (1214-1292)

Texas Mathematics Teacher



Texas Mathematics Teacher Spring/Summer 2020

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