Question

$l ^{2} = \sqrt{(15.5) {}^{2} } + \sqrt{(3.5) {}^{2} }$
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Answer 1

Answer:

l² = √(15.5)² + √(3.5)²

Or, l² = 15.5 + 3.5

Or, l = √19

Answer 2

Answer:

l^2 = √(15.5)^2 + √(3.5)^2

l^2 = 15.5 + 3.5

l = √15.5 + 3.5

l = √19.