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emmaja121003
20.10.2020 •
Mathematics
What is the order and angle of rotational symmetry of a regular octagon?
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Ответ:
10 meters
Step-by-step explanation:
From your question, it seems we are dealing with a triangle and we are given the two legs of the triangle.
The given dimensions are:
7 meters and 7 meters.
Required:
Here, we are required to find the third side of the triangle which is the hypotenus.
Using Pythagoras theorem:
a² + b² = c²
Where a = 7 & b = 7
Thus, we have:
7² + 7² = c²
c² = 49 + 49
c² = 98
Take the root of both sides
√c² = √98
c = √98
c = 9.899
c ≈ 10 meters
Therefore the length of the unknown side is approximately 10 meters