How did the pacific ring of fire get its name? does it deserve it?

Explanation:

The Pacific Ring of Fire is named so because of it's known ring-shaped pattern of Volcanoes. This is all due in part to merging tectonic plates, all resulting in oceanic Volcanoes. It does deserve the name "Ring of Fire" Because of the fact that the volcanoes shoot out fire hot magma, and all of them are arranged in a ring shape around the tectonic plate boundaries.

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Thanks!

Your friend in answering,

Steve

the answer would be the third option, "no, ariel should have added 9^2 and 12^2 and compared that to 15^2."

this is found through the pythagorean theorem, which is a^2 + b^2 = c^2.

this is the correct way of solving the problem:

9^2 + 12^2 = 15^2

81 + 144 = 225

225 = 225