ABC is similar to RST
In addition, Measure angle C=76 degrees and measure angle S=3(measure angle A)
What is Measure angle A?
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as ABC~RST
angle A=angleR
angle B=angle S
angle C=angle T
also
C=76°=T
S=3×angle A
S=3×angle R
let angle R=x
therefore A=R=x
R+S+T=180°
x+3x+76°=180°
4x=180°-76°
x=104/4
x=26
angle A = x=26°
I hope this helps u plz mark it brainleist
angle A=angleR
angle B=angle S
angle C=angle T
also
C=76°=T
S=3×angle A
S=3×angle R
let angle R=x
therefore A=R=x
R+S+T=180°
x+3x+76°=180°
4x=180°-76°
x=104/4
x=26
angle A = x=26°
I hope this helps u plz mark it brainleist
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