HEY THERE !!
As we know that the area of a circle (A)= πr^2
But if we know the diameter then the area is (A)= π/4× D^2 { here D is for diameter}
Here diameter is 10.5 inches.
A => π/4 × (10.5)^2
A => π/4 × 110.25
A => π/4 × 27.5625
A => 86.54625 { because the value of π = 3.14}
So the area of the cirsle whose diameter is 10.5 inches is 86.54625 inches square.
HOPE IT HELPED YOU.
Answer: The first one. 2 to the 20th power over 3 to the 8th power
Step-by-step explanation:
<span>The circumference of a circle is equal to pi times the diameter. which direct variation equation represents this situation
</span>C=pi *d the second one
Answer:
P=2s+a+6
Step-by-step explanation:
The perimeter of any polygon is the sum of its sides. The sides in feet are given as
s, s+2 and a+4
Hence perimeter is
P= s + s+2 + a+4
P=2s+a+6