Examine the diagram of circle A, where DB⎯⎯⎯⎯⎯⎯⎯⎯ and CB⎯⎯⎯⎯⎯⎯⎯⎯ are tangent to circle A at points D and C. Also, DB=10x+16 and CB=5x+20. The diagram of circle A as described in the problem.

What is the length of CB⎯⎯⎯⎯⎯⎯⎯⎯?

the answer is b; false. 2 dimensional things are a lot more different from 3 dimensional things.

i hope this ! : d

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idc

step-by-step explanation:

idk

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)