The red triangle is equilateral with a side of 23 centimetres. Its perimeter is Options.
A) 68 cm	B) 69 cm	C) 70 cm	D) 71 cm	E) none

Rationale: solution : all three sides of an equilateral triangle are equal . thus , its perimeter will be 23 × 3 = 69 cm answer b
Answer: B