3 years ago

Need help with this

Mathematics

1 answer:

ivolga24 [154]3 years ago

6 0

In a triangle, the sum of the interior angles is 180.

So, you have

$A+B+C=180$

Plug the values for angles A and C:

$75+B+20=180 \iff 95+B=180 \iff B=180-95=85$

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