An equilateral triangle and a square have the same perimeter. One side of the triangle measures 28 units. What is the area of the square?
Answers:
84 sq. units
112 sq. units
441 sq. units
784 sq. units.
Please explain how?

Question

An equilateral triangle and a square have the same perimeter. One side of the triangle measures 28 units. What is the area of the square?
Answers: 
84 sq. units
112 sq. units
441 sq. units
784 sq. units.
Please explain how?

anonymous · Answer

each side of the sqaure =28X3/4=21
thus area =21X21 =441 sq. units

anonymous · Answer

why would u times 21 itself twice?

anonymous · Answer

area of square= a*a (a is the length of the side)

anonymous · Answer

oh, okay, thank you

anonymous · Answer

mention not

anonymous · Answer

whats that mean?