3 years ago

What is the length of the dotted line in the diagram below? Round to the nearest tenth.

Mathematics

1 answer:

Sedaia [141]3 years ago

5 0

Answer:

12.1 units

Step-by-step explanation:

<u>Apply the Pythagorean twice to get the length of the dotted line:</u>

$d = \sqrt{9^2+7^2+4^2} =\sqrt{81+49+16} =\sqrt{146} =12.1$

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