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A farmer would like to fence his circular land that has a radius of 40 meters.
9.) How many meters of wire will he need?
10.)How much does he need if a meter of wire cost P 125.00
11.)Find the circumference of a circle with a radius of 15.3 centimeters?
12.)If the diameter of a circle is 26.4 inches, what is its circumference?

Answer po guys?​

Sagot :

Answer with Step-by-step explanation:

Circumference = 2πr  

  • r = radius
  • π = pi ≈ 3.14

Circumference = πd

  • d = diameter
  • d = 2(radius)
  • radius = (diameter)/2

9) Find the circumference of the circular land:

Circumference = 2(3.14)(40 meters)

Circumference = 251.2 meters

10.)  Cost of wire = (Php 125/meter) × (251.2 meters)

Total cost of wires needed = Php 31,400.00

11.) Radius = 15.3 centimeters.

Circumference = 3πr

Circumference = 2(3.14)(15.3 centimeters)

Circumference = 96.084  or  96.1 centimeters

12.) Diameter = 26.4 inches

Circumference = πd

Circumference = (3.14)(26.4 inches)

Circumference = 82.896  or 82.9 inches