Question

1. Find the area of a circle whose diameter is 15 cm using pie = 3.14.​

Answer 1

• as we know area of circle :
• $= \pi {r}^{2}$
• diameter of circle:
• $= 15cm$
• radius of circle:
• $= 15 \div 2 \: i.e .7.5$
• area of circle:
• $= 3.14 \times {(7.5)}^{2}$
• $= 3.14 \times 56.25$
• $= 176.625$

Answer 2

Answer:

176.625 cm sq

Step-by-step explanation:

the area of circle is pie×r×r

hence the r = 15/2 = 7.5

put the values

3.14 × 7.5 × 7.5

= 176.625 cm sq