Pls do these i will mark brainliest 15 points

area of rectangle = length x breadth

perimeter of a square = 4 x side

perimeter of a rectangle = 2(length + breadth )

step-by-step explanation:

q1:

area of rectangle = length x breadth

perimeter of a square = 4 x side

perimeter of a rectangle = 2(length + breadth )

q2:

perimeter p = 2 ( l + b )

area a = l x b

i)

p = 2(28+14) = 84 ft

a= 28 x 14 = 392 sq ft

ii)

6 yr 1 ft = 6 and 1/3 yards = 19/3 yards

8 yards 2 ft = 8 and 2/3 yards = 26/3 yards

p = 2( 19/3 + 26/3)

= 2 (45/3)

= 2*15 = 30 yards

a = 19/3   x   26/3

    = 494/9 sq yards

iii)

p = 2 ( 21 +17 ) = 2 x 38 = 76 inches

a= 21 x 17 = 357 sq inches

q 3 :

1 ft = 12 inches hence

i) 7 ft and 6 inches = 7 and 1/2 ft = 15/2 ft

  7 ft and 8 inches = 7 and 8/12 ft = 23/3 ft

p = 2 ( 15/2 + 23/3 )

  = 2 ( 7.5 + 7.66 )

  = 2 ( 15.16)

= 30.33 ft

a = 15/2   x   23/ 3   = 345 / 6 =   57.50 sq ft

ii)

p = 2 ( 9 + 10) = 2 x 19 = 38 ft

a = 9 x 10 =   90 sq ft

iii)

p = 2 ( 14/3 + 25/2 )

= 2 ( 4.66+12.50)= 2 x 17.16 = 34.33

a= 14/3   x   25/2

  = 350 / 6 = 58.33 sq ft

q4:

i)

p = 2( 3.9+6.84) = 2 ( 10.74) = 21.48 mt

ii) p = 4 x (9/2 ) = 18 ft

iii) p = 2( 16+27) = 2( 43) = 86 in

answer: 414,377,008

step-by-step explanation:

just multiply it