Question

The sides of a rectangle 80 cm and 18cm.Find its diagonal please answer fast
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Answer 1

Answer:

diagonal 82 cm please mark me as brainliest

Answer 2

Answer:

82 cm

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Step-by-step explanation:

to find the diagonal of a rectangle, we use the pythagora's theorem.

this is because the two sides and the diagonal form a right - angled triangle.

according to the rules of the theorem, a² + b² = c²

80² + 18² = c²

c² = 6400 + 324

$c = \sqrt{6400 + 324}$

$c = \sqrt{6724}$

c = 82cm