Question 11 MarkThe angle measure between the hands of the clock at the time 8 O’clock is $90^{\circ}$ .AnswerFalseView full question & answer→
Question 21 MarkThe opposite edges of a ruler do not make a model of perpendiculars.AnswerTrueView full question & answer→
Question 31 MarkIf the arms of an angle on the paper are increased, then the angle increased.AnswerFalseView full question & answer→
Question 41 MarkTwo adjacent angles have exactly one common arm.AnswerTrueView full question & answer→
Question 51 MarkAn angle is made up of two rays starting from a common initial point.AnswerTrueView full question & answer→