Question

Answer The above question in attachment.​

Answer 1

• trinagle-perimeter=a+b+c
• triangle-area=A=1/2
• square-perimeter=4a
• square- area=a square
• rectangle- perimeter=2b+2h
• rectangle-area=bh
• trapezium-perimeter=a+b+c+d
• trapezium-area=a+b/2h
• quadrilateral-area=(b1+b2)×h/2
• quadrilateral-perimeter=2l+2w

Answer 2

Answer:

1) Area of triangle = 1/2 x b x h

Perimeter of triangle = a + b + c

2) Area of trapezium = 1/2 (a + b) h

Perimeter of trapezium = a + b + c + d

3) Area of quadrilateral = 1/2 x diagonal length x sum of the lenght of the perpendiculars drawn from the remaining two vertices.

Perimeter of quadrilateral = Sum of the length of its four sides.

4) Area of square = a^2 or (side)^2

Perimeter of square = 4a or 4 x side

5) Area of rectangle = l x b

Perimeter of rectangle = 2 (l + b)