A square-shaped notice board is of area 100 sq. Ft. If an identical rectangular chart of length 12.5 ft cover the board, then what is the breadth of the chart

8 feets

Step-by-step explanation:

Given that:

Area of rectangular board = 100 ft²

Length if identical rectangular chart = 12.5ft

The are of a rectangle is obtained thus :

Area = Length * breadth

100 = 12.5feets * breath

The breadth = 100 ft² / 12.5 ft

The breadth of the chart = 8 feets

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

give more details

step-by-step explanation: