3«4 



GEOMETRY. 



23. A figure of three sides and angles is called a trian^ 

 gle. And it receives particular denominations from the re- 



lations of its sides and angles. 



24. An equilateral irmtigle is that, 

 whose three sides are equal. 



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A 



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25. An isosceles triangle is that, which / \ 



has two sides equal. / \ 



LJ-: 



26. A scalene triangle is that, 

 whose three sides are all unequal. 



27. A right-angled triangle is that, 

 which has one right angle. 



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// 



/ 



28. Other triangles are oblique-angled, and are either ob- 

 tuse-angled or acute- angled. 



2p. An 



