A photograph is framed.Dimension of photo with the frame is 8cm by 6cm and dimension without the frame is 6 cm by 4.5cm.Find the area of the frame.
Answers
dimension of the area of the frame or the area between the photo with the frame and the photo without the frame:
length= length of photo with frame- length of photo without frame= 8-6= 2 cm
width: width of photo with frame- photo without frame= 6-4.5=1.5 cm
area of the frame= length × breadth
= 2×1.5= 3 cm²
cost of polishing the frame = rate* area of frame
= 3×5 = rs 15 per sq cm.
Step-by-step explanation:
a) dimension of the area of the frame or the area between the photo with the frame and the photo without the frame:
length= length of photo with frame- length of photo without frame= 8-6= 2 cm
width: width of photo with frame- photo without frame= 6-4.5=1.5 cm
area of the frame= length × breadth
= 2×1.5= 3 cm^2
cost of polishing the frame = rate* area of frame
= 3×5 = rs 15 per sq cm.
b)
area of footpath= length × breadth = 10×6= 60 sq. m
area of a tile= length × breadth= 3×4= 12 sq. cm
Now converting 60 sq m into sq cms :
1 sq m is 10000 sq cm
600000 sq cm= 60 sq m
no of tiles needed= area of footpath/ area of a tile
= 600000/12 = 50000 tiles