The three angles of a triangle are a°(a+20)and(a+40)° Find the value of a
Mathématiques
calabrial51
Question
The three angles of a triangle are a°(a+20)and(a+40)°
Find the value of a
Find the value of a
1 Réponse
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1. Réponse caylus
Hello,
a+(a+20)+(a+40)=180
=> 3a+60=180
=>3a=180-60
=>3a=120
=>a=120/3
=>a=40(°)