Question

In parallelogram FIST, find angleSFT,
find angleOST and angleSTO
35
110
125​

Answer 1

Answer:

in triangle TOF,

angle T+ angle O+ angle F=180°

25°+110°+angle SFT=180°

angle SFT=180°-135°=45°

in triangle TOS,

angle T+angle O+angle S=180°

35°+(180°-110°)+angle OST=180°

35°+70°+angle OST=180°

angle OST=180°-105°=75°

angle STO=angle T(in triangle SOT)=35°