Answer:
X=1÷2,Y=32°
Step-by-step explanation:
in right angled traingleRST
<R+<T<S=180(INTERIOR ANGLE OF TRAINGLE)
Y-2+90+60=180(S=60°BEING ONE ANGLE OF EQUILATERAL TRAINGLE)
Y+148=180
Y=180-148=32
NOW,
UT=5X(RT BISECTS TS AND UT EQUALLY)
RU=US(SIDE OF EQUILITERAL TRAINGLE IS EQUAL)
8X+1=UT+TS
8X+1=5X+5X
1=10X-8X
1=2X
X=1/2
-4
-5
5/2(-5)≤-14 false
-12.5≤ -14 so false
The others are true
