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AVprozaik [17]
2 years ago
13

What is the length of diagnoal of 7-by-7 square. (round to nearest tenth).​

Mathematics
1 answer:
Sphinxa [80]2 years ago
6 0

Answer:

9.9

Step-by-step explanation:

We can use the Pythagorean theorem to solve.  The legs are both 7 and we are booking for the hypotenuse

a^2 +b^2 = c^2  where a and b are the legs and c is the hypotenuse

7^2+7^2 = c^2

49+49 = c^2

98 =c^2

Taking the square root of each side

sqrt(98) = sqrt(c^2)

9.899494937=c

9.9 = c

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Step-by-step explanation:

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5 0
3 years ago
*BRAINIEST &amp; 20 POINTS*<br><br> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
kondor19780726 [428]

Answer:

8 = x

y = 29

Step-by-step explanation:

4x + 17 = y + 20 because vertical angles theorem.

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Plug 8 in for x and solve.

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2 years ago
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3 years ago
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