Question

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What is the missing side?

Answer 1

Answer:

90

Step-by-step explanation:

the forumla of a triangle is base times height, divided by 2 and since it has a height of 12 and a base of 15, and if you multiply that it would give you 180, then divide by 2 since it is half a sqaure, which is 90

Answer 2

Answer:

$3 \sqrt{41}$

Step-by-step explanation:

$12^2 + 15^2 = x^2 \\x = \sqrt{369} = 3\sqrt{41}$