. Sheet metal workers' manual; a complete, practical instruction book on the sheet metal industry, machinery and tools, and related subjects, including the oxy-acetylen welding and cutting process . K M Figure Figure 45. EF, GH, IK and LM. Connect the points EK, LG, FIand HM. Then GFIHMKEL is the required octagon. To construct a circle equal in area to two given circles.—Figure 45. Let AB and AC equal the diameters of thegiven circles: Erect AC at A and at right angles to B and C, then bisect the line BC at D and de-scribe the circle ACB, which is the circle required andis equa
. Sheet metal workers' manual; a complete, practical instruction book on the sheet metal industry, machinery and tools, and related subjects, including the oxy-acetylen welding and cutting process . K M Figure Figure 45. EF, GH, IK and LM. Connect the points EK, LG, FIand HM. Then GFIHMKEL is the required octagon. To construct a circle equal in area to two given circles.—Figure 45. Let AB and AC equal the diameters of thegiven circles: Erect AC at A and at right angles to B and C, then bisect the line BC at D and de-scribe the circle ACB, which is the circle required andis equal in area to the two given circles. To describe an octagon about a given circle.—Figure46. Let ACBD be the given circle: Draw the diametersAB and CD at right angles to each other. With any con-venient radius and centers A, C, B and D describe arcsintersecting each other at E, H, F and G. Join EF andGH, which form two additional diameters. At the pointsA, B, C, D, draw the lines KL, PR, MN and ST, parallelwith the diameters CD and AB respectively. At the PRACTICAL GEOMETRY AND MENSURATION 4S1 points of intersection of the circumference of the circleby the lines EF and GH, draw the lines KP, BM, NTand 8L
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Keywords: ., bookcentury1900, bookdecade1910, bookidsheetmetalwo, bookyear1918
