Question

Which of these describes a unique polygon?

Select the correct choice.
A
A quadrilateral with 4 right angles
B
A triangle with angles 30°, 80°, and 70°
С.
A triangle with side lengths 7 cm and 8 cm and a 70° angle
A triangle with each side length 5 inches

Answer 1

The last option is unique.

Explanation:

A triangle with each side length 5 inches - there's only one of these.