Plane and solid geometry . Ex. 663. Upon a given line as base construct a triangle similar to agiven triangle. _ Ex. 664. Draw a triangle ABC. Estimate the lengths of its a second triangle DEF similar to ABC andhaving DE equal to two thirds of AB, ComputeDF and EF. Ex. 665. Any two altitudes of a triangle are toeach other inversely as the sides to which they aredrawn. Ex. 666. At a cer-tain hour of the day atree, BC^ casts a shadow,CA, At the same timea vertical pole, ED^ E casts a shadow, measurements arenecessary to determinethe height of the tree ? D A. Ex. 667. If CA Is
Plane and solid geometry . Ex. 663. Upon a given line as base construct a triangle similar to agiven triangle. _ Ex. 664. Draw a triangle ABC. Estimate the lengths of its a second triangle DEF similar to ABC andhaving DE equal to two thirds of AB, ComputeDF and EF. Ex. 665. Any two altitudes of a triangle are toeach other inversely as the sides to which they aredrawn. Ex. 666. At a cer-tain hour of the day atree, BC^ casts a shadow,CA, At the same timea vertical pole, ED^ E casts a shadow, measurements arenecessary to determinethe height of the tree ? D A. Ex. 667. If CA Is found to be 64 feet; DF, 16 feet; ED, 10 feet;what is the height of the tree? Ex. 668. To find the distance acrossa river from ^ to 5, a point C was locatedso that BC was perpendicular to AB atB, CD was then measured off 100 feetin length and perpendicular to BC at line of sight from Z> to ^ intersectedBC at E. By measurement CE wasfound to be 90 feet and EB 210 was the distance across the river ?
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectgeometr, bookyear1912
