Q.2- Find the area and perimeter of an equilateral triangle whose each side in 5cm.
Q.3- Find the area of a rectangle whose length and breadth are 45 cm and 16cm respectively.
Now, find the perimeter of the rectangle.
Q.4- Find the area and perimeter of a rectangle whose length and breadth are 15.4cm and
6.5cm respectively.
Q.5- Find the are of a rectagel which in 30cm long and 25cm broad .
Q.6- Find the area of a square whose each side is 2.5cm.Now find the perimeter.
Q.7- The area of a rectangle is 540 cm² .
If its length in 27cm. Find iit width also its perimeter.
Q.8- The adjacent sides of a parallelogram are 12 cm and 8cm. The length g the altitude
corresponding to the side 12cm in 6cm . Find the length of the altitude corresponding to the
other side.
Q.9- A field in the space of parallelogram with base 260cm and the corresponding hight in
130cm . find the cost of cultivating it at the rate of 75 paisa per area.
Q.10- Find the side of the parallelogram whose area is 3922 square meter and the
corresponding altitude is 24.5 meters .
Answers
Answered by
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Answer:
2. area of equilateral triangle =root3 /4 ×side/2
=root3/4×5×5
=root 3/4×25
root3 *25/4
Answered by
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Q.2-A=3
4a2=3
4·52≈10.82532
Q.3-A = l × b
Q.4-
4a2=3
4·52≈10.82532
Q.3-A = l × b
Q.4-
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