Circles and Semi Circles

An angle whose vertex lies on the circle and whose sides are chords of the circle

• inscribed angle 

• central angle

• arc

• radius

A line that intersects a circle at exactly one point

• secant

• circle

• chord

• tangent

An angle whose vertex is the center of a circle

• central angle

• inscribed angle

• minor arc

• major arc

In the equation (x+2)²+(y-3)²=4, the radius of the circle is...

• 4

• 2

• 3

• 16

Write the equation of a circle with center (7, 0) with radius 3.

• (x - 7)² + y² = 9

• x² + (y -7)² = 9

• (x - 7)² + y² = 3

• x² + (y -7)² = 3

• ∠APB + ∠AQB = 180°

• ∠APB + ∠AQB = 90°

• ∠APB = ∠AQB

• None of the above

Q1. What is the angle of a right triangle?

• A) 50°

• B) 45°

• C) 60°

• D) 40°

• 3cm

• 2cm

• 4cm

• 1cm

Say 'TRUE' or 'FALSE'
The diameter is the longest chord of a circle

• TRUE

• FALSE

Angle in a semicircle is a

• Acute angle

• Right angle

• Obtuse angle

• None of the above