(Not factorised) . Please show working for each step
First of all, it's not pie.
It's pi, or π.
Area = πr²
Area = π (x + 4)²
Area = π (x² + 8x + 16)
Area = πx² + 8πx + 16π
A = π ( x + 4 ) ²
A = π ( x² + + 8x + 16)
A = π x² + 8π x + 16π
The area A(x)=pi(x+4)^2=pi(x^2+8x+16).
given r = x + 4
A = πr^2
A = π(x + 4)^2
A = π(x^2 + 8x + 16)
A = πx^2 + 8πx + 16π answer//
The expression for the area of a circle is: pi times (x+4) to the power of 2
The name for 𝛑 is pi, not pie; but perhaps you were joking about that.
A circle with radius r has area, A = 𝛑r^2
Just write x + 4 where the letter r was before.
A = 𝛑(x+4)^2
That is one form of the answer; you could if you like expand that to
A = 𝛑 (x^2 + 8x +16)
In general, a circle with radius, r, has an area, A,
of pi(r^2). Here, r = (x+4) so A = pi(x+4)^2, ie.,
A = (x^2 +8x +16)pi.
The formula for the area of a circle is A=pi*r^2
r^2=(x+4)(x+4)=x^2+8x+16
Multiply it by pi to get A=pi*x^2+pi*8x+pi*16
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Answers & Comments
First of all, it's not pie.
It's pi, or π.
Area = πr²
Area = π (x + 4)²
Area = π (x² + 8x + 16)
Area = πx² + 8πx + 16π
A = π ( x + 4 ) ²
A = π ( x² + + 8x + 16)
A = π x² + 8π x + 16π
The area A(x)=pi(x+4)^2=pi(x^2+8x+16).
given r = x + 4
A = πr^2
A = π(x + 4)^2
A = π(x^2 + 8x + 16)
A = πx^2 + 8πx + 16π answer//
The expression for the area of a circle is: pi times (x+4) to the power of 2
The name for 𝛑 is pi, not pie; but perhaps you were joking about that.
A circle with radius r has area, A = 𝛑r^2
Just write x + 4 where the letter r was before.
A = 𝛑(x+4)^2
That is one form of the answer; you could if you like expand that to
A = 𝛑 (x^2 + 8x +16)
In general, a circle with radius, r, has an area, A,
of pi(r^2). Here, r = (x+4) so A = pi(x+4)^2, ie.,
A = (x^2 +8x +16)pi.
The formula for the area of a circle is A=pi*r^2
r^2=(x+4)(x+4)=x^2+8x+16
Multiply it by pi to get A=pi*x^2+pi*8x+pi*16