rm another regular pentagoru 16. In the figure of Prop. 15, if EG, FH intersect in K, prove thatGKP is an isosceles triangle with angles at base double of third. 17. In the same, show that EG is divided in medial section at K. 18. In the same, show that HDGK is a rhombus. 19. In the same, show that… … Let A l^e the centre of the smaller circle, and B thecentre of the larger. With centre B, ancl radius equal to the difference ofthe radii, describe a circle CC. From A draw the tangent AC. Join BC and produceit to D. Draw AE || to BD. Join ED. TJien ED is a common tangent. For AE, CD are = and ||;…
Geometry · Geometry, Plane
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