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Ludmilka [50]
3 years ago
9

The dimensions of a screen are 21 ft by 20 ft. Find the length of the diagonal .

Mathematics
1 answer:
mote1985 [20]3 years ago
7 0

Answer:

29 ft

Step-by-step explanation:

the screens have 90 degree angles so they form right triangles with the diagonal, so use Pythagorean theorem to solve for the diagonal

diagonal² = 21² +20² , square and square root both sides of the equation

diagonal = √441+400, add

diagonal = √841, square root

diagonal = 29ft

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we are given

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