Take 8 radians and divide it by the quantity 2 pi.
2*pi radians = 1 rotation so 8 radians = 8/(2*pi) = 1.273 rotations (approx)
Area = r2*A where A is the angle measure in radians. = 8*8*80*pi/180 = 89.361 square units.
Eight.
A brick has 8 corners.
There are 64 squares as on a chess board. This is assuming that 8 by 8 in the question means 8 rows and 8 columns.
Length of arc = angle of arc (in radians) × radius of circle With a ratio of 7:8 the area of the sector is 7/8 the area of the whole circle. This is the same as saying that the circle has been divided up into 8 equal sectors and 7 have been shaded in. Dividing the circle up into 8 equal sectors will give each sector an angle of arc of 2π × 1/8 7 of these sectors will thus encompass an angle of arc of 2π × 1/8 × 7 = 2π × 7/8 = 7π/4 Thus the length of the arc of the sector is 7π/4 × radius of the circle. --------------------------------- Alternatively, it can be considered that as 7/8 of the area is in the sector, the length of the arc is 7/8 the circumference of the circle = 7/8 × 2π × radius = 7π/4 × radius.
Since an entire circle is 2π radians, 1/8 would be π/4
The list of choices is difficult to read from here, but 8 radians = 458.366 degrees. (rounded)
There are 56/7 = 8 weeks.
Area = r2*A where A is the angle measure in radians. = 8*8*80*pi/180 = 89.361 square units.
Circumference is 1 meter so radius = 0.5/pi meters = 0.160 meters/160 millimeters to the nearest thousandth
It depends on whether rotations are considered the same or different. 1 x 24, 2 x 12, 3 x 8, 4 x 6 are the distinct rectangles if rotations are disallowed. Each of them can be rotated through 90 degrees to give four more if rotated versions are considered different.
The answer is 1680. When the cube is rotated, there are 8 points a single vertex could end up on, and 3 ways for each vertex to be rotated onto itself. Therefore, it is 8!/(8x3)=40320/24=1680
The VIN codes correspond to the engine in the vehicle. 7 is the code for the DOHC 1.9, while 8 is the code for the SOHC...
Circumference of wheel = 2*pi*1 = 2*pi 50/2*pi = 7.957747155 nearly 8 meters
5/8 = tan(x) x = tan-1(5/8) = tan-1(0.625) = 0.558599 + k*pi radians or 32.00538 + k*180 degrees where k is an integer
By recognizing key words that correspond to key parts of the equation. For example, "is" is = "added to " is + "taken away from" is - etc. the equation 5 + 3 = 8 can be written as 5 added to 3 is 8.
(1 sec/8 rad) * (2 pi rad/1 rev) * 50 rev = 12.5 * pi seconds about 39.27 seconds