The construction of shapes involves drawing or copying lines and angles with the use of construction instruments and materials. Thus the appropriate answers to the given question are:
a. an angle congruent to a given angle.
b. arc JK and draw an arc centered at L on the leg of the new angle.
In construction, a pair of compasses and a straight edge is usually required in drawing line and angles. This requires following the appropriate steps to construct any required shape.
For the given question, the answers required are:
a. The copying of a given angle requires using the pair of compasses to draw arcs and complete the angle.
Thus the given image is a result of the construction of an angle congruent to a given angle. So that on completion, <D = <B.
b. The next step is to set the compass width to arc JK and draw an arc centered at L on the leg of the new angle.
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