Question

Please help!!!:( image is above ^

Answer 1

Answer:

the length of diagonal will be

√l^2+b^2+h^2

so, given length breadth and height are given respectively 12cm, 8cm, 14cm

so,

=√12^2+8^2+14^2

=√144+64+196

=√404

=20.009975124422 answer

Answer 2

We need to first find the diagonal that moves along the base.

a²+b²=c²

12²+8²=c²

c²=208

c=√208

Now we have find the length for the answer.

(√208)²+14²=c²

c²=208+196

c²=404

c= 20.10 cm approx.

answer: C