Question

A rectangle has a width of 9 units and a length of 40 units. What is the length of a diagonal?

31 units
39 units
41 units
49 units
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Answer 1

The length of the diagonal is 41 units

Explanation:

Got it right on edge

Answer 2

41 units

Explanation:

Rectangles have right angles, so we can use Pythagorean theorem to find the diagonal.

c² = a² + b²

c² = 9² + 40²

c² = 81 + 1600

c² = 1681

c = 41