The angle of a sector of a circle is 108°. If the rad...
The angle of a sector of a circle is 108°. If the radius of the circle is 31/2cm, find the perimeter of the sector
6 3/5cm
6 4/5cm
7 1/10cm
10 2/5cm
13 3/5cm,
Correct answer is E
Perimeter of sector = \frac{\theta}{360°} \times 2\pi r + 2r
= \frac{108}{360} \times 2 \times \frac{22}{7} \times \frac{7}{2} + 2(\frac{7}{2})
= 6 \frac{3}{5} + 7
= 13 \frac{3}{5} cm
If log_{x^{1/2}}^{64} = 3, find the value of x ...
Express 3 - [\frac{x - y}{y}] as a single fraction...
In the diagram, NR is a diameter, ∠MNR = x° and, ∠SRN = (5x + 20)°. Find the va...
What is the next number in the series 2, 1, \frac{1}{2}, \frac{1}{4}......
Simplify log10 a\frac{1}{3} + \frac{1}{4}log10 a - \frac{1}{12}log10a7...
In an acute angle-triangle XYZ, XZ = 9cm, YZ = 11cm and ∠XZY = 35° Calculate ∠YXZ, corre...