Irridel Irridel

11-08-2021
Mathematics

contestada

If 150° and 3a are supplementary angles, find the value of a.

Respuesta :

jimrgrant1 jimrgrant1

11-08-2021

Answer:

a = 10

Step-by-step explanation:

Supplementary angles sum to 180° , so

150 + 3a = 180 ( subtract 150 from both sides )

3a = 30 ( divide both sides by 3 )

a = 10

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