Any help is appreciated

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv