Download 2 GROUP ACTIVITY CLASS -9 Time: 45 min Max. Marks: 10

INDIAN SCHOOL MUSCAT
DEPARTMENT OF MATHEMATICS
FORMATIVE ASSESSMENT - 2 GROUP ACTIVITY
CLASS -9
Time: 45 min
Max. Marks: 10
Complete the cross word puzzle, by answering the questions given below :
1
2
4
6
7
8
12
3
5
11
10
DOWN
1. A / An ________ angle measures between 00 and 900.
2. An angle is formed when two rays originate from the same end point, this point is called
_____.
5. A __________ has just one end point.
7. Angle between two adjacent walls of a room is an example of _______ angle.
12. If 2 lines are extended indefinitely in both directions and never meet, are called ____
lines.
DOWN
1. A / An ________ angle measures between 00 and 900.
2. An angle is formed when two rays originate from the same end point, this point
is called
_____.
5. If a transversal intersects two parallel lines, then each pair of __________
interior angles is equal.
7. Angle between two adjacent walls of a room is an example of _______ angle.
12. If 2 lines are extended indefinitely in both directions and never meet, are
called ____ lines.
ACROSS
1.The rays making an angle are called ____.
3. A line which intersects two or more lines at distance points is called a
________.
4. Three or more points lying on same line, are called ________ points.
6. Angle made by two hands of the clock at 6 o’clock is an example of _____
angle.
8. An angle which is greater than 1800 but less than 3600 is called a ______ angle.
10. Two angles are ______, if they have a common vertex, a common arm and
their non-common arms are on different sides of the common arm.
11.The sum of the angles of a ______ is 1800.
Answer the following questions:
1.
In the given fig; line l is parallel to
line m, find 1 and 2
2.
In the fig; find the value of x
3.
In the fig; if AOC = 500 ,
find (AOD + COB)
4.
In the given fig; 1 = 2, find
the measure 3 and 4