Advertisements
Advertisements
प्रश्न
The length of a rectangular field is 30 m and its diagonal is 34 m. Find the breadth of the field and its perimeter.
Advertisements
उत्तर
Length = 30 m
Diagonals = 34 m
Let the breadth of the rectangle = b m
Applying Pythagoras Theorem in triangle ABC,
We get,
AC2 = AB2 + BC2
(34)2 = (30)2 + b2
1156 = 900 + b2
1156 − 900 = b2
256 = b2
⇒ b `sqrt256` = 16 m
Perimeter = 2(l + b)
= 2(30 + 16)
= 2 × 46
= 92 m
APPEARS IN
संबंधित प्रश्न
Find the perimeter of a rectangle with length = 24 cm and diagonal = 25 cm
The cost of fencing a square field at the rate of ₹ 75 per meter is ₹ 67,500. Find the perimeter and the side of the square field.
Find the perimeter of a square whose each side is 1.6 m.
The side of a square is of length 20 mm. Find its perimeter in cm.
The sides of a rectangle are 5 cm and 3 cm respectively. Find its area in mm2.
How much wire will be needed to make a rectangle of length 6 cm and breadth 3 cm?
Take a thick paper sheet of length 14 cm and width 9 cm. You can also use an old postcard.
- What is its area? What is its perimeter?
Length of a rectangular field is 6 times its breadth. If the length of the field is 120 cm, find the breadth and perimeter of the field.
Find the perimeter of the following figure:
Which unit is used to measure perimeter?
