Page 128 - Maths Skill - 6

126 Maths

Step 5: Suppose, if we draw a perpendicular from C to line AB and this C
perpendicular meet to AB at point K then line segment CK is the
perpendicular bisector of AB, it is shown in fig. below:

Here CK ⊥ AB and CK is also perpendicular bisector of AB
A B
K

Exercise 8.1

1. Construct a square with side 6 cm.
2. Construct a rectangle with sides of length 6 cm and 3 cm.
3. Construct a rectangle with sides of length 6.5 cm and 4.2 cm.
4. Construct a rectangle whose one of its side is 3.5 cm and its diagonal length is 4.5 cm.

5. Construct a rectangle where one of its side is 4 cm and the length of a diagonal is 6 cm.
6. Construct a rectangle in which one of the diagonals divides the opposite angles into 75° and 15°.

ASSESSMENT TIME

COMPETENCY BASED QUESTIONS 2. To construct a triangle whose two sides are equal,
you need to use a _____________ to mark the
A. Multiple-Choice Questions
equal lengths from a common vertex.
1. The shape of protractor is
(i) Circular (ii) Rectangular 3. The _____________ is a tool used in geometry
for precise measurements and drawings of
(iii) Semi-Circular (iv) Triangular various shapes.

2. Which tool is used to draw a circle? 4. A _____________ is a tool used to measure and
(i) Compass (ii) Protractor draw straight lines.

(iii) Ruler (iv) Set-Square
5. A _____________ is used to measure angles and
3. To measure a perpendicular line which tool is can measure angles from 0 to 180°.
commonly used?
(i) Compass (ii) Set square SUBJECTIVE TYPE QUESTIONS

(iii) Ruler (iv) Protractor
C. Do the Following Questions
4. Which tool is frequently used for drawing
straight lines? 1. Construct a rectangle with sides of length 8 cm

(i) Protractor (ii) Set square and 5 cm.
(iii) Ruler (iv) Compass 2. Construct a square with side 7.3 cm.
3. Construct a rectangle in which one of the
B. Fill in the Blanks
diagonals divides the opposite angles into
1. To measure the size of an angle accurately, you 45° and 45°.
should use a ________________.