Question
The length of a tangent from a point A at a distance 5
cms. from the centre of the circle is 4 cms. Radius of the circle isSolution
A tangent at any point of a circle is perpendicular to the radius through the point of contact. Therefore, ∠OTA = 90° and ΔOTA is a right-angled triangle. By Pythagoras theorem, OA2 = OT2 + AT2 52 = OT2 + 42 OT2 = 25 - 16 OT2 = 9 OT = ± 3 Radius OT cannot be negative. Hence, the radius is 3 cm.
In the question, assuming the given statements to be true, find which of the following conclusion(s) among the two conclusions is/are true and then give...
Which of the following symbols should replace the sign (@) respectively in the given expression in order to make the expression Y ≥ Z and D > K defini...
Statements:
A = B ≤ Y < Z; P ≤ I < A; M ≤ Y < N
Conclusions:
I). Â M < Z
II). Â P < Y
III). Â N > A
...In the following question, a relationship between different elements is shown in the statements, followed by two conclusions I and II. Assuming the stat...
Statement: T > B = P ≥ C ; B ≥ J > F; O ≤ J ≤ C
