Question

1) a) Find the area in sq. cm of a rectangle whose length and breadth are 12 cm and 40 mm
respectively.​

Answer 1

Answer:

area =12*4 =48sq.cm

Step-by-step explanation:

area is equal to product of length and breadth

Answer 2

Given:-

• Length of a rectangle is 12 cm.
• Breadth of a rectangle is 40 mm.

To find:-

• Area of a rectangle.

Solution:-

Here,

• Length (l) = 12 cm
• Breadth (b) = 40 mm = 4cm

We know that,

Area of rectangle = length × breadth

→ A = l × b

→ A = 12 × 4

→ A = 48 cm²

Hence,

• the area of a rectangle is 48 cm².

More Formulas:-

→ Perimeter of rectangle = 2(l + b)

→ Perimeter of square = 4 × side

→ Area of square = a²

→ Area of triangle = ½ × b × h

→ Area of parallelogram = b × h