Question

Find the area of a rectangle
whose length is 12m and
width is 5m.
​

Answer 1

Answer:

34

Step-by-step explanation:

area=2(l+b)

2(12+5)

2(17)

34

Answer 2

$area \: of \: rectangle (l \times b)$

$length = 12m$

$width = 5m$

A.T.Q

Area of rectangle= (l×b)

Area of rectangle= (12×5) m

Area of rectangle= 60m

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Some important formulae:-

• Area of square= s×s or s²
• Area of rectangle= l×b
• Area of triangle= 1/2 ×bh

• Area of parallelogram= bh
• Area of Trapezoid= b¹+b²/2×h

• Area of circle= πr²
• Perimeter of square= 4×side
• Perimeter of rectangle= 2×(l+b)
• Perimeter of triangle= a+b+c
• Perimeter of right angeled triangle= a+b+√a²+b²
• Perimeter of circle= 2πr=πd
• Volume of cube= s³
• Volume of right rectangular prism= LWH
• Volume of prism or cylinder= Ah
• Volume of pyramid or cone= 1/3 × Ah

• Volume of sphere= 4/3πr³