Equilateral Triangle Practice
Question 1
Which of the following triangles are equilateral triangles?
Answer
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Step by Step Solution
Step 1
For triangle I, it has three sides of
equal length (5ft). Hence, it is an
equilateral triangle.
Step 2
As for triangle II, it is not an
equilateral triangle. This is because each
of its internal angle is not 60°.
Step 3
As for triangle III, not all the sides
have the same length. Therefore, it is
not an equilateral triangle.
Step 4
For triangle IV, its internal angles are
60° each. This means that all the sides
of the triangle have the same length.
Hence, this is an equilateral triangle.
Step 5
Clearly, only triangle I and IV
are equilateral triangles. Therefore, the answer is
B.
To close the steps,
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