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3 years ago

Find the area of this circle. Use 3 for pi

Mathematics

2 answers:

Svetlanka [38]3 years ago

6 0

Answer:

A = 147 cm²

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Geometry

Area of a Circle Formula: A = πr²

r is radius

Step-by-step explanation:

Step 1: Define

Identify

r = 7 cm

Step 2: Find Area

Substitute in variables [Area of a Circle Formula]: A = 3(7 cm)²
Evaluate exponents: A = 3(49 cm²)
Multiply: A = 147 cm²

ohaa [14]3 years ago

5 0

Step-by-step explanation:

given pi value= 3

radius=7

we know,

area of a circle(A)= πr²

= 3×7²

=147cm²

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A ball of radius 14 has a round hole of radius 4 drilled through its center.

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