Write down the two distinct properties between equilateral and isosceles triangle

answer:

step-by-step explanation:

an equilateral triangle has three (3) congruent sides

while an isosceles triangle only has two (2)

both equations and proportions are better.

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).