(a) The rectangular arrays could the squares have been arranged as
1 by 135, 3 by 45, 5 by 27, 9 by 15, 15 by 9.
(b) The rectangular arrays is of 1 by 23.
What is solar panel?
An assembly of photovoltaic solar cells installed on a frame (often rectangular) is known as a solar cell panel, solar electric panel, photo-voltaic (PV) module, PV panel, or solar panel. A well-organized collection of PV panels is known as a photovoltaic system or solar array. Sunlight is used by solar panels to collect radiant energy, which is then transformed into direct current (DC) power.
(a) Let a particular solar panel is 5 squares by 27 squares.
5 by 27 = 135 which can be arranged as,
1 by 135
3 by 45
5 by 27
9 by 15
15 by 9
(b) There were 23 squares.
The factors of 23 are 1, 23 only so there can be only 1 rectangular array of 1 by 23.
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