How many diagonals can be drawn in the shape below? 24 40 18 20 ?
2 answers:
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Answer:
c) 5√2 cm
Step-by-step explanation:
A square with side length l has a perimeter given by the following equation:
P = 4l.
In this question:
P = 20
So the side length is:
4l = 20
l = 20/4
l = 5
Diagonal
The diagonal forms a right triangle with two sides, in which the diagonal is the hypothenuse. Applying the pytagoras theorem.
Lenght is a positive meausre, so
So the correct answer is:
c) 5√2 cm