Elements of Business Arithmetic
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In our eReader you can find the full English version of the book. Read Elements of Business Arithmetic Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Elements of Business Arithmetic
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TRIANGLES 71. Right Triangles. Take a piece of paper 4 inches square. Fold and cut along the diagonal. You now have two right MEASURES OF AREA 103 angles. Take one of them and fold so that the vertex of the upper angle will meet the vertex of the right angle. Crease and tear. Place the upper part upside down and with its oblique side next to the oblique side of the larger piece. What have you made ? How does the base of the rectangle compare in length with that of the triangle ? The height of... the rec- tangle with the altitude of the triangle ?
A right triangle is equivalent to a rectangle on the same base with half the altitude.
72. Isosceles Triangle. Take a 4-inch paper square. From the middle point of the upper edge draw lines to the lower corners. Fold along the lines, crease, and tear. The large triangle remaining is an isosceles triangle. Why?
Fold the upper vertex down so it will just touch the middle point of the base. Crease and tear. Con- nect the middle points of the two bases by a straight line.
What to read after Elements of Business Arithmetic?
You can find similar books in the "Read Also" column, or choose other free books by Anson Hardin Bigelow to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
?
TRIANGLES 71. Right Triangles. Take a piece of paper 4 inches square. Fold and cut along the diagonal. You now have two right MEASURES OF AREA 103 angles. Take one of them and fold so that the vertex of the upper angle will meet the vertex of the right angle. Crease and tear. Place the upper part upside down and with its oblique side next to the oblique side of the larger piece. What have you made ? How does the base of the rectangle compare in length with that of the triangle ? The height of... the rec- tangle with the altitude of the triangle ?
A right triangle is equivalent to a rectangle on the same base with half the altitude.
72. Isosceles Triangle. Take a 4-inch paper square. From the middle point of the upper edge draw lines to the lower corners. Fold along the lines, crease, and tear. The large triangle remaining is an isosceles triangle. Why?
Fold the upper vertex down so it will just touch the middle point of the base. Crease and tear. Con- nect the middle points of the two bases by a straight line.
What to read after Elements of Business Arithmetic?
You can find similar books in the "Read Also" column, or choose other free books by Anson Hardin Bigelow to read onlineMoreLess
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