Question

find the area of each of the following parallelograms

Answer 1

Area of parallelogram = base × height
= 7× 4 = 28 sq.cm.

Answer 2

Question :-

• Find areas of following :-

Answer :-

• (a) Area of the parallelogram

⠀⠀⠀= base × altitude = 7 cm × 4 cm

⠀⠀⠀= 28 ${cm}^{2}$

• (b) Area of the parallelogram

⠀⠀⠀= base × altitude = 5 cm × 3 cm

⠀⠀⠀= 15 ${cm}^{2}$

• (c) Area of the parallelogram

⠀⠀⠀= base × altitude = 2.5 cm × 3.5 cm

⠀⠀⠀= 8.75 ${cm}^{2}$

• (d) Area of the parallelogram

⠀⠀⠀= base × altitude = 5 cm × 4.8 cm

⠀⠀⠀= 24.0 ${cm}^{2}$

• (e) Area of the parallelogram

⠀⠀⠀= base × altitude = 2 cm × 4.4 cm

⠀⠀⠀= 8.8 ${cm}^{2}$

More about it :-

1 The perimeter of a regular polygon

= number of sides × length of one side

2. The perimeter of a square = 4 × side

3. Perimeter of rectangle = 2 × (l + b)

4. Area of a square = side × side

5. Area of a rectangle = l × b

Conversion of Units :-

• 1cm =10 mm

• 1 ${cm}^{2}$ = 100 ${mm}^{2}$

• 1 ${m}^{2}$ = 100 × 100 = 10,000 ${cm}^{2}$

• 1 ${km}^{2}$ = 1000 × 1000 = 1,000,000 ${m}^{2}$

• 1 hectare = 10,000 m2