The square below has a side length of 5 cm. What is the length of the missing side? Round your answer to the nearest whole number. A. 4 cm B. 5 cm C. 6 cm D. 7 cm

Question

asked Oct 28, 2022 133k views

1 Answer

FloE · Answer 1 · 2022-11-02T11:34:55+0000

Answer:

D. about 7 cm

Explanation:

You can use the pythagorean theorem.

You have a triangle with sides of 5 and 5, so that means the third side is:

$a^2 + b^2 = c^2 --> 5^2 + 5^2 = c^2\\25 + 25 = c^2\\50 = c^2\\c = 5√(2)$

rounding:

5√(2) = 7