Act geometry ? a certain triangle has sides each with integer lengths. if two of the sides are 4 units long and 7 units long, what is the greatest possible value, in units, for the triangle's perimeter? f) 7 g) 10 h) 12 j) 21 k) 22

Third side should be more than 7-4=3, but less than 7+4=11.

So 3d greatest side will be 10, because it should be integer, but it cannot be 11.

The greatest perimeter = 4+7+10=21.

j.21.

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).