bcampbell712 bcampbell712

07-07-2020
Mathematics

contestada

unknown angle problems

unknown angle problems class=

Respuesta :

5kimmie 5kimmie

07-07-2020

Answer:

12°

Step-by-step explanation:

(x+42)°+3x°=90°

x°+42°+3x°=90°

4x°=90°-42°

4x°=48°

4x°/4=48°/4

x°=12°

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