Answered

At Westonci.ca, we make it easy for you to get the answers you need from a community of knowledgeable individuals. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

T1 (Find the area of the circle with diameter 7 cm.)​

Sagot :

Ashraf82

Answer:

The area of the circle is 38.5 cm²

Step-by-step explanation:

The rule of the area of a circle is A = π r², where

  • r is the radius of the circle
  • The radius of the circle is half the diameter of the circle r = [tex]\frac{1}{2}[/tex] d

Let us solve the question

∵ The diameter of the circle is 7 cm

∴ d = 7 cm

∵ r = [tex]\frac{1}{2}[/tex] d

→ Substitute d by 7

∴ r = [tex]\frac{1}{2}[/tex] (7)

∴ r = 3.5 cm

→ Substitute the value of r in the rule of the area above

∵ A = π (3.5)²

∴ A = 12.25π

∵ π = [tex]\frac{22}{7}[/tex]

∴ A = 12.25 ( [tex]\frac{22}{7}[/tex] )

∴ A = 38.5 cm²

∴ The area of the circle is 38.5 cm²

We appreciate your time. Please come back anytime for the latest information and answers to your questions. Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. Thank you for visiting Westonci.ca. Stay informed by coming back for more detailed answers.