find the value of the unknown exterior angle 'x'
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GIᐯEᑎ,
∠A=50°
∠B=70°
ᗯE ᒪET,
∠C=(50°+70°)-180°
=60°
ᴡᴇ ɴᴇᴇᴅ ᴛᴏ ꜰɪɴᴅ ᴠᴀʟᴜᴇ ᴏꜰ ∠᙭
so,
∠x=180°-60°
=120°
(ᴘᴜᴛɪɴɢ ∠ᑕ ᴠᴀʟᴜᴇ)
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