Page 116 - Maths Skill - 6

Playing With Construction
8 8 Playing With Construction

Learning Outcomes
In this chapter, you will learn about :
� Construction of a circle when its radius is known � Exploration in Rectangles
� Construction of wavy wave � Construction of Rectangle by using two or more identical squares
� Construction of Eyes � Construction of square with a hole
� Squares and Rectangles � Construction of Rectangle having diagonals divides opposite angles into 60° and 30°
� Construction of Square � Point Equidistant from two given points
� Construction of Rectangle

Boot-Up (To Recapitulate Previous Knowledge of Concepts)

COMPETENCY BASED QUESTIONS

A. Multiple-Choice Questions
1. A line has
(i) fixed length (ii) infinite length (iii) no length (iv) none of these

2. A ________ has a starting point and an end point.
(i) line segment (ii) line (iii) ray (iv) none of these

3. A right angle measures ________.
(i) equal to 90° (ii) less than 90° (iii) greater than 90° (iv) none of these

4. An angle whose measure is 40° is an

(i) obtuse angle (ii) acute angle (iii) reflex angle (iv) none of these
5. A triangle whose all the three sides are equal is a/an
(i) equilateral triangle (ii) scalene triangle (iii) Isosceles triangle (iv) none of these

6. If a circle has radius 4 cm, then its diameter is

(i) 2 cm (ii) 4 cm (iii) 8 cm (iv) none of these

B. Fill in the Blanks
1. If P and Q are two points on a circle, then the line segment PQ is called a ___________ of the circle.
2. A diameter is the ___________ chord of the circle.

3. The distance around a circle is called its ___________ .
4. ___________ of a circle is called a semi-circle.
5. A line segment passing through the centre of a circle with its end points on the circle is a
________________ of the circle.