Class 7 Exam  >  Class 7 Notes  >  Mathematics (Maths) Class 7  >  Very Short Question Answers: Perimeter and Area

Class 7 Maths Chapter 9 Question Answers - Perimeter and Area

Q1: Write the formula to find the area of triangle.
Ans: The formula to find the area of triangle is
Class 7 Maths Chapter 9 Question Answers - Perimeter and Area
where, b = Base of triangle h = Height of triangle

Q2: Write the formula to find the area of circle.
Ans: The formula to find the area of circle is
A = πr2
where, A= Area of circle
r = Radius of circle

Q3: Write the formula to find the circumference of a circle.
Ans: The formula to find the circumference of a circle is
C = 2πr
Where, C = Circumference of circle
r = Radius of circle

Q4: The distance around a circular region is known as its_______.
Ans: Circumference

Q5: Write the formula to find the area and perimeter of a rectangle.
Ans: The formula to find the area and perimeter of a rectangle are
Area of rectangle = l x b
Perimeter of rectangle = 2(l + b)
where, l = Length of rectangle
b = Breadth of rectangle

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