Question

The length of the side of an equilateral triangle is 6 cm. Compare the length with its perimeter and identify which postulate is applicable here.

• A. The whole is greater than the part.
• B. If equals are added to equals, the wholes are equal.
• C. Things which are halves of the same things are equal to one another.
• D. Things which coincide with one another are equal to one another.

Answer 1

The correct option is A The whole is greater than the part.

Length of an equilateral triangle = 6 cm
Perimeter of the equilateral triangle = 6 + 6 + 6 = 18 cm
Perimeter is greater than the length.
The postulate "The whole is greater than the part" is applicable here.