what is the area of an equilateral triangle with a side of 1 inch?
A
1 square inch
B
3/2square inch
C
1/2 square inch
D
3/4square inch
Correct Answer: 3/4square inch
equilateral = সমবাহু ত্রিভুজ, এর ক্ষেত্রফল = 34a2 = 3412 = 34 sqinch