Area and Perimeter

Q1

What is meant by the area and perimeter of any shape?

Area means the region enclosed by any closed figure and perimeter means the length of the boundary of the shape.

Q2

What is the area and perimeter of an equilateral triangle?

Area of equilateral triangle = √3/4 a² and perimeter of an equilateral triangle = 3a where a is the length of the side of the equilateral triangle.

Q3

What is the area and perimeter of an isosceles triangle?

Area of isosceles triangle = b/4[4a² – b²]^1/2 and perimeter of an isosceles triangle = 2a + b where a is the length of the equal sides and b is the length of the unequal side.

Q4

What is the area of a trapezium?

Area of a trapezium = ½ h(a + b) where h = height and a, b are length of the parallel sides.