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Mathematics Lab Activity-09 Class X Mathematics Laboratory Activities on Similarity of Triangles for class X students with complete observation tables strictly according to the CBSE syllabus.
Mathematics Lab Activity-11 Class XII
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Mathematics Lab Activity-11 Class XII
Mathematics Laboratory Activities 11 on Applications of Derivatives for class XI Non-Medical students with complete observation tables strictly according to the CBSE syllabus.
Chapter - 06
applications of derivatives
Activity - 11
Objective
To verify that amongst all
the rectangles of the same perimeter, the square has the maximum area.
Material Required
Chart paper, paper cutter, scale, pencil, eraser cardboard, glue
Procedure
1. Take a cardboard of a
convenient size and paste a white paper on it.
Make rectangles each of perimeter say 48 cm on a
chart paper. Rectangles of different dimensions are as follows.
2. Area of rectangle R1 : 16 cm x 8 cm = 128 cm2.
3. Area of rectangle R2 : 15 cm x 9 cm = 135 cm2.
4. Area of rectangle R3 : 14 cm x 10 cm = 140 cm2.
5. Area of rectangle R4
: 13 cm x 11 cm = 143 cm2.
6. Area of rectangle R5
: 12 cm x 12 cm = 144 cm2.
7. Area of rectangle R6
: 12.5 cm x 11.5 cm = 143.75 cm2.
8. Area of rectangle R7
: 10.5 cm x 13.5 cm = 141.75 cm2.
Observations
1. Perimeter of each rectangle R1, R2 , R3 , R4, R5, R6 , R7 is 48 cm.
2. Area
od rectangles: R1,
R2 , R3 , R4,
R6 , R7 all are smaller than the area of rectangle R5
.
3. Area of rectangle R5
with dimensions 12 cm x 12 cm is maximum and is equal to 144 cm2.
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