What is the correct answer?
4
A. 50 cm
B. 64 cm
C. 124 cm
D. 120 cm
Clearly first we need to find the areas of the given squares, for that we need its side.Side of sqaure = Perimeter/4So sides are,
244 , 324 , 404 , 764 , 804=6, 8, 10, 19, 20 Area of new square will be = 62+82+102+192+202 = 36+64+100+361+400 =961cm2 Side of new Sqaure =961 =31cm Required perimeter = 4×31 =124cm