If COSA
Cos A = 4
7 /
them find sinA
Answers
Answered by
1
Answer:
jdjdjsjdfhakasjdhdndnssj
Answered by
0
Cos A = 4/7
CosA =Base/Hypotenuse
AB=4
AC=7
Find BC by Pythagoras theorem
(AC)²= (AB)²+ (BC)²
(7)²= (4)²+ (BC)²
49–16=(BC)²
33=(BC)²
BC=root 33
SinA=Perpendicular/Hypotenuse
SinA=root33/7
Attachments:
Similar questions