mari9334 mari9334

25-10-2019
Mathematics

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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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devishri1977 devishri1977

25-10-2019

Answer:

41 units

Step-by-step explanation:

Pythagorean's theorem,

Hypotenuse² = base² + adjacent²

Diagonal² = length² + width²

= 40² + 9²

= 1600 + 81 = 1681

Diagonal = √1681 = 41 units

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