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A rectangular book measures 4 x 7. What is the length of its
diagonal?


Sagot :

pythagorean theorem tells us a^2 plus b^2 is c^2, in this case a would be 4, b is 7, and c is the diagonal. 16+49 is the c^2, so the diagonal is about 8

Answer:8.1

Step-by-step explanation: