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3 years ago

Please help!!!:( image is above ^

Mathematics

2 answers:

jekas [21]3 years ago

8 0

Answer:

<h2>the length of diagonal will be </h2><h2>√l^2+b^2+h^2</h2>

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

r-ruslan [8.4K]3 years ago

3 0

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

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