Chapter 57, Problem 20A

Trace the plate shown on next page. Lay out three sets of holes by construction. Follow the given directions.
Directions:
• Bisect ∠A and construct four equally spaced $\frac{3}{16}$ -inch diameter holes. Make the first hole $\frac{7}{8}$inch from point A and the last hole $2\frac{7}{16}$ inches from point A.
• Bisect ∠B and construct eight equally spaced $\frac{1}{4}$ -inch diameter holes. Make the first hole $\frac{3}{4}$inch from point B and the last hole $3\frac{11}{16}$inches from the first hole.
• Bisect ∠C and construct four equally spaced $\frac{3}{16}$ -inch diameter holes. Make the first hole $\frac{9}{16}$inch from point C and the last hole $2\frac{11}{16}$ inches from point C.