sandraayokersandy123 sandraayokersandy123
  • 17-08-2022
  • Mathematics
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The complement of angle a is 20° less than half the supplement of angle a. find the measure of angle a.

Respuesta :

surjithayer surjithayer
  • 17-08-2022

Answer:

∠a=40°

Step-by-step explanation:

complement of angle a=90-a

supplement of angle a=180-a

90-a=1/2(180-a)-20

multiply by 2

180-2a=180-a-40

180-180+40=-a+2a

a=40

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