Question

Find the perimeters of the following figures​

Answer 1

Answer:

perimeter of rectangle =L x B

premiter of triangle=3xall sides

Answer 2

We know,

Perimeter of rectangle = 2(length + breadth)

Perimeter of triangle = Sum of three sides

Therefore,

Perimeter of rectangle in fig.(i) :

→ 2{(3x - 2y)+(6x + y)}

→ 2{3x - 2y + 6x + y}

→ 2(9x - y)

→ 18x - 2y units

Perimeter of triangle in fig.(ii) :

→ (b - a)+(4a - 2b)+(2a + 3b)

→ b - a + 4a - 2b + 2a + 3b

→ 4b - 2b + 6a - a

→ 5a + 2b units