Letters that make internal angle
a, e, g, l, n, r, t, i are letters that make 'internal angle'
Words within internal angle
ER, angle, AN, te, NT, intern, RN, ANG, ng, inter, internal, in, ern, tern, AL, IN, Angle, LE, Al, Er, In, Rn, Na, Te, RNA are words within 'internal angle'