Advertisements
Advertisements
प्रश्न
A rectangle is (8x + 5) cm long and (5x + 3) cm broad. Find its area.
उत्तर
Length of the rectangle = (8x + 5) cm
Breadth of the rectangle = (5x + 3) cm
Area of rectangle = length × breadth
= (8x + 5)(5x + 3)
= 8x(5x + 3) + 5(5x + 3)
= 8x × 5x + 8x × 3 + 5 × 5x + 5 × 3
= 40x2 + 24x + 25x + 15
= 40x2 + 49x + 15
So, area of rectangle is (40x2 + 49x + 15) cm2.
संबंधित प्रश्न
Simplify (3x − 11y) − (17x + 13y) and choose the right answer.
The product of (23x2y3z) and (−15x3yz2) is ______.
Rakesh’s age is less than Sania’s age by 5 years. The sum of their ages is 27 years. How old are they?
When planting a forest, the number of jambhul trees planted was greater than the number of Ashoka trees by 60. If there are altogether 200 trees of these two types, how many jambhul trees were planted?
Shubhangi has twice as many 20-rupee notes as she has 50-rupee notes. Altogether, she has 2700 rupees. How many 50-rupee notes does she have?
Virat made twice as many runs as Rohit. The total of their scores is 2 less than a double century. How many runs did each of them make?
Solve the following equation.
2x + 2 = 8
Solve the following equation.
3x - 5 = x - 17
The length of a rectangle is 1 cm more than twice its breadth. If the perimeter of the rectangle is 50 cm, find its length.
The length of a rectangle is 1 cm more than twice its breadth. If the perimeter of the rectangle is 50 cm, find its length.
