Circles Tangents Secants Chords and Angles

Q1. What is the sum of 16 and 17?

• A) 33

• B) 18

• C) 46

• D) 16

• 240
• 230
• 205
• 255

Find the radius r

• 2

• 3

• 4

• 5

Find the measure of ∠ABE.

• 129⁰

• 51⁰

• 100⁰

• 65⁰

PA and PB are tangents of length 15cm to the circle with centre O. If PRO is a straight line with PR = 9cm, calculate the radius of the circle.

Find the value of x.

• 10

• 181

• 34

• 40

Section 10-2:

Lines that appear to be tangent are​ tangent.

        What is the value of​ x?

Mathematical Equivalence

ON

Answer explanation

radii drawn to the point of tangency for right angles.

x = 360 - 90 - 90 - 120

x = 60

Where in the intersection of the secants shown?

• Inside the circle

• Outside the circle

• On the circle

• The secants do not intersect.

In the figure,PA and PB are the tangents to a circle of center 'O'. ∠AOB= 120⁰ then ∠APB =

• 60⁰

• 30⁰

• 120⁰

• 75⁰

In the diagram, PQ and QR are tangents to a circle at P and R respectively. Which of the following statements is correct?