Two angles a and b are complementary and ais one fourth of b. Find the value of a and b
Mathématiques
sonikay755
Question
Two angles a and b are complementary and ais one fourth of b. Find the value of a and b
1 Réponse
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1. Réponse veryjeanpaul
Réponse :
Good afternoon
Explications étape par étape :
you know that
a+b=90° and a=(1/4)b
so (1/4)b+b=90
(5/4)b=90
b=90*4/5=72°
and a=90-72=18°