Answer:
12 units
Step-by-step explanation:
Notice that as we go from Q to R, x (the horizontal distance) increases by 12 and y (the vertical distance) does not change. Thus, the distance between the two points is merely the horizontal distance, 12 units.
Answer:
10000 (1sf)
12000(2sf)
11900(3sf)
11940(4sf)
Step-by-step explanation:
I would go for 12000 (2sf) if it the degree of accuracy isn't specified in the question
Answer:
Radius of the Earth is 3978.8 Miles
Circumference of the Earth is 25000 Miles
Step-by-step explanation:
The angle of the sun shone at an angle of 7.2° to the zenith
This means that the angle of the sector of the circle is 7.2° (θ)
S = Length of the sector of the circle = 500 miles
r = radius of earth
Converting 7.2° to radians
∴ Radius of the Earth is 3978.8 Miles
∴ Circumference of the Earth is 25000 Miles
Solution:
- Perimeter of Rectangle = 346
Let Required length of breadth be x
- Then, Length of Rectangle = 45 + x
Now, We have ;
- Perimeter of Rectangle = 2(l+b)
- Perimeter of Rectangle = 2 ( 45 + x + x
- 346 = 2 ( 45 + 2x )
- 346 = 90 + 4x
- 346 - 90 = 4x
- 256 = 4x
- x = 256 ÷ 4
- x = 64 inches
So, Length of Rectangle = x + 46
Length of Rectangle = 64 + 46
Length of Rectangle = 110 inches
Now, Breadth of Rectangle = 64 inches.
