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23-04-2021
Mathematics

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Does anyone know the answer to this?

Does anyone know the answer to this class=

Respuesta :

cwrw238 cwrw238

23-04-2021

Answer:

10.5.

Step-by-step explanation:

By similar triangles:

IJ / 21 = 8 /(8+8) = 1/2

IJ / 21 = 1/2

IJ = 1/2 * 21

= 10.5.

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