Question

Help!! need answer pls ( if correct will give brainleist)

The circumference of a circle is 20 4/35 cm.

What is the approximate diameter of the circle?

Use 22/7 for π.

Enter your answer as a mixed number in simplest form

Answer 1

Answer: diameter is 3 1/5 cm

Step-by-step explanation:

The circumstance of circle = 20 4/35 = 704/35 cm

Let, radius = r cm

Then, according to the question,

2πr = 704/35

, 2×(22/7)×r = 704/35

, r = (704×7)/(44×35)

, r = 16/5 cm = 3 1/5 cm

Answer 2

Answer:

Diameter of the circle is 6 2/5 m.

Step-by-step explanation:

Given:

Circumference of a circle =20 4/35 cm.

                                           ={(20 × 35) +4} /35=704/35 cm.

Let the radius of the circle =R

As we know that,

Circumference of circle = 2×$\pi$×R

                  704/35 =2 × (22/7) ×R    ($\pi$=22/7)

                 R= (704 × 7 ) / (2 × 22 ×35)    (by doing cross multiplication)

                R=352/ (22 × 5)

                R= 32 /(2 × 5 )

                   =16/5 cm.

Diameter of the circle = 2 × radius

                                    =2 × (16/5)

                                    =32/5=6 2/5 cm.