shanataylor11261989 shanataylor11261989

28-02-2021
Mathematics

contestada

anyone i need help with this

anyone i need help with this class=

Respuesta :

28-02-2021

Answer:

Step-by-step explanation:

a1=90-a2

a1=90-30=60

a2 is opposite 30 and opposite angles are equal so

a2=30

The sum of the angles of a triangle are equal to 180 degrees.

a2+a3+70=180

a3+30+70=180

a3=100=180

a3=80

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