Question

Find the approximate diameter of a circle whose circumference is
2. 33 cm
1. 15 cm
3. 108 mm
4.6 m
5. 51 cm
Find the approximate radius of a circle whose circumferences
2. 24 cm
1. 36 cm
3. 78 mm
4. 180 mm
5. 3 m
REVISION EXERCISE
Name the line segments in each of the following figures
C С
2.
3.
S
1.
.R
T T
B
А A
E
A
P
Mathematics Book-5​

Answer 1

Answer:

Step-by-step explanation:

Circumference of a circle in general form is 2πr

And diameter is 2 x radius

So, finding all the diameters by putting values in the formula

1. 105/22cm

2. 10.5cm

3. 378/11 = 34.36mm ( 1 meter = 10 mili meter)

4. 21/11 m

5. 357/22cm

Now, find remaining radii

1. 63/11cm

2. 42/11

3. 273/22mm

4. 315/11mm

5. 21/44m