Fill in the blanks.
a. If a circle has a diameter of 9.64 cm, its radius will be cm.
b. If the radius of a circle equals 5.8 m, its diameter is m.
c. A quarter circle is also known as a
d. The diameter of a circle is a straight line passing through the joining two points on the circumference.
e. Each half of a circle is called a
State whether the following are true or false.
a. The radius of a circle whose diameter is 6 cm, will be 12 cm.
()
b. The centre of the circle lies on its circumference. ()
c. The outer boundary of a circle is called the circumference. ()
d. The radius of a circle is half of its diameter. ()
e. The line stretching across the circle passing through its centre is called the radius.
Select the correct answer from the given options.
a. The line from the centre to the circumference of a circle is its
O centre
O diameter
Oradius
Ocircumference
b. One-fourth part of a circle is called a
O quadrant
fixed point
Osemicircle
triangle
c. A complete turn of 360° makes a
O radius
O circle
Odiameter
semicircle
d. The diameter of a circle with radius 16 cm will be
O 48 cm
8 cm
64 cm
32 cm
e. The circumference of a circle is
Oits outer boundary
O a line joining two points on the boundary
O the distance of the centre and a point on the boundary
O double its diameter
Mr Hamza Shaheen
