Question
In a circle, two tangents PA and PB are drawn from an
external point P such that the angle ∠APB = 60°. If the radius of the circle is 10 cm, find the length of each tangent.Solution
In a circle, the tangents drawn from an external point are equal in length. Let the length of the tangent be x cm. In triangle ∆APB, since PA = PB, ∆APB is an isosceles triangle. Also, ∠APB = 60°. Using the cosine rule: x² = 10² + 10² − 2(10)(10)cos(60°) x² = 100 + 100 − 200 × (1/2) x² = 200 − 100 x² = 100 x = 10 cm Correct answer: a) 10 cm
Which of the following is not a group decision making technique?
What is the benefit of using problem-solving techniques, such as the 5 Whys?
Which of the following is not a disadvantage of group decision making?
Decision making process first requires identification of problem. Which of the following types of problems can be considered here?
In which decision-making technique do experts provide their opinions anonymously to avoid bias, and a consensus is reached after several rounds?
Which of the following is not a feature of a strategic decision?
Decision making is an important part of management functions. Which of the following functions it is most closely related to?
When people take decisions based on the most currently presented items or experiences, it is called _____
Which of the following is a not feature of a programmed decision?
Which of the following best describes a decision tree?
