# Glencoe Geometry. Concepts and Applications HQ

Similar geometry and topology books

Famous problems of elementary geometry: the duplication of the cube, the trisection of an angle, the quadrature of the circle: an authorized translation of F. Klein's Vorträge

Commonly considered as a vintage of recent arithmetic, this improved model of Felix Klein's celebrated 1894 lectures makes use of modern recommendations to ascertain 3 well-known difficulties of antiquity: doubling the quantity of a dice, trisecting an attitude, and squaring a circle. modern scholars will locate this quantity of specific curiosity in its solutions to such questions as: less than what conditions is a geometrical building attainable?

Additional resources for Glencoe Geometry. Concepts and Applications HQ

Sample text

Plane ABC bisects E ෆG ෆ. The midpoint of the segment must be found to separate a segment into two congruent segments. If the segment is part of a number line, you can use arithmetic to find the midpoint. If there is no number line, you can use a construction to find the midpoint. Construction Materials: compass Step 1 Use a straightedge to draw the segment you wish to bisect. Name it X ෆZ ෆ. Step 2 Place the compass at point X. Use any compass setting greater than one half of XZ. Draw an arc above and below ෆ XZ ෆ.

Use the number line to find PQ. (Lesson 2–1) P Ϫ7 Ϫ6 Ϫ5 Ϫ4 Ϫ3 Ϫ2 Ϫ1 Q 0 1 2 3 4 5 6 7 3. Points R, S, and T are collinear. If RS ϭ 71, ST ϭ 55, and RT ϭ 16, determine which point is between the other two. (Lesson 2–2) 4. Refer to the line below. If AB ϭ 28 and AC ϭ 44, find BC. (Lesson 2–2) A B C 5. Find the length of the line segment in centimeters and in inches. com/self_check_quiz (Lesson 2–2) Lesson 2–2 Segments and Properties of Real Numbers 61 2–3 What You’ll Learn You’ll learn to identify congruent segments and find the midpoints of segments.

Abbreviations for units of area use the exponent 2. square inch → in2 square centimeter → cm2 The area of the rectangle below can be found by dividing it into 20 unit squares. 4 in. 5 in. The area of a rectangle is also found by multiplying the length and the width. Words: Area of a Rectangle Words: The area A of a rectangle is the product of the length ᐉ and the width w. Symbols: A ϭ ᐉw Model: w ᐉ Example 2 14 in. Find the area of the rectangle. A ϭ ᐉw Area formula A ϭ (14)(10) Replace ᐉ with 14 A ϭ 140 and w with 10.