7π/2 cm
7π cm
14π cm
7π/4 cm
Correct answer is A
Length of an arc = θ/360 x 2πr
90/360 x 2 x π x 7
= 7π/2
Which of the following binary operations is cumulative on the set of integers?...
The fifth term of an A.P is 24 and the eleventh term is 96. Find the first term. ...
If 101\(_{\text{two}}\) + 12y = 3.3\(_{\text{five}}\). Find the value of y...
In the diagram, PQRS is a circle. find the value of x. ...
If x is inversely proportional to y and x = 2\(\frac{1}{2}\) when y = 2, find x if y = 4...
A regular polygon has 9 sides. What is the size of one of its exterior angles?...
If log7.5 = 0.8751, evaluate 2 log75 + log750 ...