Answer:
m∠S = 29.5
Explanation:
Q
S R
In this triangle, QR = SQ, which means its an isosceles triangle, angle S and R is similar.
<u>Thus solve:</u>
m∠S = (180° - 121°)/2
m∠S = 29.5°
A=3x^2-2(x-y)^2-3y^2 tại x=4,y=-4
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Intelligent Muslim,
From Uzbekistan.