Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.
Draw a line segment of 4 cm and create an arc of 4 cm from each endpoint.
Draw three lines of 4 cm from one point.
Use only a straightedge to measure 4 cm.
Draw a line, then divide it in half.
Continue with nearby questions to strengthen the same chapter concept while you still have the context fresh in mind.