Let x be the distance it runs on the first day, then:-
x + x + 2 + x + 4 = 54
3x + 6 = 54
3x = 54 - 6 = 48
x = 48/3 = 16 km
So for the first 2 days it runs 16 + 18 = 34 km. Answer
Length = 40ft
width = 20ft
40 + 40 + 20 + 20 = 120
Given:
The length of the rectangle = 16 ft
The width of the rectangle = 12 ft
The diameter of the semicircle = 12 ft
To find the area of the given figure.
Formula
where,
be the area of the given figure
be the area of the rectangle
be the area of the semicircle.
- The area of the rectangle =
where, l be the length and b be the width - Area of the semicircle =
, r be the radius of the semicircle.
Now,
The radius of the semicircle r = 6 ft
Putting, r=6, l=16 and b= 12 we get,
sq ft
or,
sq ft
sq ft
or,
sq ft
So,
sq ft
= 248.52 sq ft
Rounding off to the nearest tenth, we get;
A=248.5 sq ft.
Hence,
The area of the composite figure is 248.5 sq ft.