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15-04-2020
Mathematics

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I really need help on 3 and 4

I really need help on 3 and 4 class=

Respuesta :

nurijetaam nurijetaam

15-04-2020

Answer:

3. 58

4.90 and 145

Step-by-step explanation:

These are tetragonal the fomula for the sum of interior angles is:

a+b+c+d=360°

Example:

3. 120+52+130+x=360

x= 58°

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