25-02-2021
Mathematics

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Work out the length of AC

Work out the length of AC class=

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Respuesta :

alessia23 alessia23

09-03-2021

Answer:

AC= 14.8cm

Step-by-step explanation:

By using formula

a²= b²+c²- 2bcCosA

Substitue the numbers into the equation

(7)²+(10)²-2 (7) (10) Cos(120)

= 219

AC= √219

AC= 14.8cm

hope this helped :)

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