jjbdjrkrirj jjbdjrkrirj

09-09-2021
Mathematics

contestada

find the length of the side marked x

find the length of the side marked x class=

Respuesta :

chemistryfan63 chemistryfan63

09-09-2021

Answer:

19.77 cm

Step-by-step explanation:

We'll use the pythagorean theorem

a^2 + b^2 = c^2

b^2 = c^2 - a^2

x^2 = 20^2 - 9^2

x^2 = 400 - 81

x^2 = 391

x = 19.77

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