hannah03230 hannah03230

Today at 5:23 AM
Mathematics

Answered

A) square root 6

B) 6

C) 6 square root 2

D) 12

E) 12 square root 2

Please help

A) square root 6 B) 6 C) 6 square root 2 D) 12 E) 12 square root 2 Please help class=

Answer :

jackiezhang2007 jackiezhang2007

Today at 5:29 AM

sin(45degrees) or BC/AB is 1/sqrt2(that's the value of sin45 degrees I recommend you to memorize this.)

x/12=1/sqrt2

x*sqrt2=12

x=12/sqrt2

Now rationalize this fraction to make the answer more formal.

x=12sqrt2/2(I multiplied both top and bottom by sqrt2)

Now simplify

x=6sqrt2

Question done! answer is C 6 square root of 2

Hope this helped any questions just put them in the comments.

Answer Link

21amalun 21amalun

Today at 5:28 AM

Answer:

6 square root 2

Step-by-step explanation:

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