A square field is 40 meters on each side, beginning at one corner, light
towers are built every 10 meters on three sides of the field.
16 towers are needed.
According to the question
A square field is 40 meters on each side. beginning at one corner, light
towers are built every 10 meters on three sides of the field.
Look at the picture, except for the tower on the corner (A, B, C, D).
Square, in geometry, a plane figure with four equal sides and four right (90°) angles. A square is a special kind of rectangle (an equilateral one) and a special kind of parallelogram (an equilateral and equiangular one).
There are 3 towers on each side
So, 3 × 4 + 4 = 12 + 4
= 16
16 towers are needed.
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