Perimeter and Area - Class 7 Maths Free MCQ Test with solutions

Since area of parallelogram is base × height

So to find Base of parallelogram the formula is = Area of parallelogram / Height

So option A is the correct answer. 

The formula for the circumference of a circle is:

Circumference = π × diameter

Circumference = 3.14 ×10 = 31.4cm

Since Area of parallelogram is base × height

So Height = Area of parallelogram / Base 

So option A is the correct answer. 

- The distance around a circular region is known as its circumference.
- Circumference is the term used to describe the perimeter of a circle.

• The area of a parallelogram is calculated as Base × Height.
• This formula works because the height is the perpendicular distance from the base to the opposite side.
• Unlike triangles or trapeziums which require different calculations or coefficients, a parallelogram's area is directly obtained by multiplying its base by its height.
• Thus, option 1 is the correct answer as per the provided solution.

We know Area of a triangle is bxh/2

where b is base and h is height

Given that base is 10 cm  and height is 30 cm

Area of a triangle 10 cm x 30 cm / 2

= 300 cm²/2     

= 150 cm²

So option A is the correct answer. 

The area of a circle can be calculated using the formula:

• Area = π × r²

For a circle with a radius of 5 cm:

• Substituting the radius into the formula:
• Area = π × (5 cm)²
• Area = π × 25 cm²

Using the approximate value of π (3.14):

• Area ≈ 3.14 × 25 cm²
• Area ≈ 78.5 cm²

To express this in a fraction form:

• Area = 550/7 cm²

Thus, the area of the circle with a radius of 5 cm is 550/7 cm².

Perimeter = Sum of all the sides 

Perimeter of a triangle = a+b+c

Here a = 4cm , b = 6cm , c =10cm

(6+4+10)cm=20cm

So option A is the correct answer.