1) A solid sphere of diameter “x” cm is melted to make 54 solid congruent hemispheres of diameter
0.06 m, without using calculator and showing all
necessary steps find exact value of x.

2) Surface area of 100 congruent solid spheres of
diameter “y” m is same as total surface area of 300
congruent solid hemispheres of diameter 10cm ,
find the exact value of y.

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.