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A rectangular book measures 12 x 15. What is the length of its diagonal? Round the answer to the nearest tenth.

A rectangular book measures 12 x 15. What is the length of its diagonal? Round the answer to the nearest tenth.
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A rectangular book measures 12 x 15. What is the length of

its diagonal?
Round the answer to the nearest tenth.

User Rhea
by
8.2k points

1 Answer

0 votes
Use Pythagoras

a² + b² = c²
12² + 15² = c²
144 + 225 = 369

Square root of 369 = 19.2
User Sigint
by
8.8k points
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