Errata – Geometry, 4th Edition
Cover for 4th Edition
4.0
| Page | Location | Description | Erroneous Text | Correction |
|---|---|---|---|---|
| 80 | Bottom | Layout Problem | Trapezoid figure obscures some text. | The GRE will occasionally ask you to find the area of a polygon more complex than a simple triangle or rectangle. The following formulas can be used to find the areas of other types of quadrilaterals: |
| 115 | Bottom | #10, 1st line | If angle ACB… | If angle ABC… |
| 115 | Bottom | #10, 2nd line |
How long is arc AXB? (or) How long is arc ABC? |
How long is arc AXC? |
| 118 | Bottom | #10, 2nd line | Angle ACB… | Angle ABC… |
| 118 | Bottom | #10, 3rd line |
Thus arc AXB… (or) Thus arc ABC… |
Thus arc AXC… |
| 225 | Middle | #3, last line | … side BD… | … side CD… |
| 225 | Bottom | #4, 1st line | Since 5⁰ and 50⁰ are supplementary, S = 180 – 50 = 130. | Since S⁰ and 50⁰ are supplementary, S = 180 – 50 = 130. |
| 251 | Middle | #18, 4th line from bottom | … the long legs of these four triangles equal x ÷ √(3) = [x√(3)] ÷ 3. | … the long legs of these four triangles equal [x√(3)] ÷ 2. |