EXERCISE Chapter 9 parallel lines
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The document contains a series of math word problems and geometry exercises involving angles, triangles, trapezoids, and algebraic expressions. Students are asked to identify geometric features of shapes, calculate unknown angle measures, and solve for unknown variables in expressions. They must apply properties of angles, triangles, parallel lines, and algebraic operations to determine the requested values.
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The document discusses proportional line segments formed when a line parallel to one side of a triangle intersects the other two sides. It states that if a line parallel to one side of a triangle intersects the other two sides, it divides those sides proportionally. An example problem demonstrates finding the value of x given lengths of line segments intercepted by parallel lines intersecting two transversals. The document concludes by thanking the reader and providing attribution for the material.
Chapter 9 PARALLEL LINES SMPK PENABUR GADING SERPONG
This document discusses parallel lines and their properties. It defines parallel lines as lines that do not intersect and always have the same distance between them. It then covers different types of angles formed when parallel lines are intersected by a transversal line, including corresponding angles, alternate interior angles, alternate exterior angles, consecutive interior angles, and consecutive exterior angles. It states properties of these angles, such as corresponding angles being congruent and alternate interior angles and exterior angles being congruent. Examples are given of finding missing angle measures using these properties.
Daily test sets feb 2012.docx ( edit )
The document is a daily mathematics test for 7th grade students consisting of 20 multiple choice questions and 10 short answer questions related to sets. It tests concepts such as subsets, unions, intersections, complements and Venn diagrams. The test has a time limit of 80 minutes.
Quiz relationships of angles
This document contains a 10 question quiz on angle relationships in mathematics. It asks the student to find missing angle measures based on given information about angles being supplementary, complementary, ratios of angles, and relationships between an angle and its complement or supplement. The student must show their work and arrive at the exact angle measure.
Basic geometrical constructions
Basic geometrical constuctions is how to construct angle by using compass and ruler.
this slide can help students or teachers to construct any angles especially for special angles they are 90 degree, 60 degree, 45 degree and 30 degree.
Ratio & proportion
The document discusses ratios, proportions, and scale drawings. It begins by defining a ratio as a comparison of two or more quantities without units. Ratios can be written in different forms such as a:b or a to b. A proportion is an equation stating that one ratio is equal to another. Direct proportion means that as one quantity increases, the other also increases by the same factor. Inverse proportion means that as one quantity increases, the other decreases. Scale drawings use a scale ratio to show the relationship between an object's depicted size and its actual size. Examples are provided to demonstrate calculating ratios, proportions, direct and inverse proportions, and using scale ratios.
Equiations and inequalities
Here are the key steps to solve word problems involving linear equations:
1. Read the problem carefully and identify the important details.
2. Define variables to represent unknown quantities.
3. Write a mathematical expression relating the variables based on the context of the problem.
4. Form an equation and solve it using proper order of operations.
5. Check that the solution makes sense in the context of the original problem.
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Chapter 9 PARALLEL LINES SMPK PENABUR GADING SERPONG
Chapter 9 PARALLEL LINES SMPK PENABUR GADING SERPONG
EXERCISE Chapter 9 parallel lines
- 1. CHAPTER 9 EXERCISE SMPK PENABUR GADING SERPONG Name : Class / No : 7.. / …. ============================================== Answer each question carefully and completely ! 1) Refer to the figure on the right. H ABCD.EFGH is a cube, with a G horizontal base. E F a. Name all edges that intersect HG b. Name all edges that are parallel to BC D C c. Name all edges that are skew to BF A d. Name all vertical edges B e. Name all horizontal edges 2) Look at the picture below! Identify each pair angles as t corresponding, alternate interior, alternate exterior, allied interior or 1 3 allied exterior angles a 2 4 a. 1 and 12 b. 4 and 9 5 7 c. 2 and 10 b 6 8 d. 8 and 11 e. 1 and 10 9 11 f. 6 and 3 10 12 c 3) ABCD is a trapezoid with CD parallel to EF T R O P Q If RPQ = 460, and RTQ = 340 Calculate : a) POQ b) TOP
- 2. 4) Find the value of x ! 6x0 4xo 5) Find the value of x ! 1250 x0 280 6) Find the value of x, y and z ! ( 4z +2 )0 x0 (y + 19)0 0 (3y - 11) 7) Look at the picture ! E F D A B C Given that, ABF = 1070 and P is a right angle . calculate ADE ! 8) Find the value of x ! 960 1370 x0