The block

The block has the dimensions of 5 cm, 10 cm, and 15 cm. Calculate the size of the wall diagonals of this block.

Correct answer:

d1 =  11.1803 cm
d2 =  15.8114 cm
d3 =  18.0278 cm

Step-by-step explanation:

a=5 cm b=10 cm c=15 cm  d12=a2+b2 d1=a2+b2=52+102=5 5=11.1803 cm
d22=a2+c2 d2=a2+c2=52+152=5 10=15.8114 cm
d32=b2+c2 d3=b2+c2=102+152=5 13=18.0278 cm

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