2\(\pi\)
\(\pi\)
\(\frac{2}{3}\)
\(\frac{\pi}{2}\)
Correct answer is D
Diameter = 8cm
∴ Radius = 4cm
Length of arc = \(\frac{\theta}{360}\) x 2 \(\pi\)r but Q = 22\(\frac{1}{2}\)
∴ Length \(\frac{22\frac{1}{2}}{360}\) x 2 x \(\pi\) x 4
= \(\frac{22\frac{1}{2} \times 8\pi}{360}\)
= \(\frac{180}{360}\)
= \(\frac{\pi}{2}\)
The length of a rectangle is 10 cm. If its perimeter is 28 cm, find the area ...
The sum of the interior angle of pentagon is 6x + 6y. Find y in terms of x. ...
The set of value of x and y which satisfies the equations x2 - y - 1 = 0 and y - 2x + 2 = 0 is...
A group of students took a test and the following frequency table shows the scores above The me...
Find the length of a side of a rhombus whose diagonals are 6cm and 8cm ...