You have a wire that is 50 cm long. You wish to cut it into two pieces. One piece will be bent into the shape of a square. The o ther piece will be bent into the shape of a circle. Let A represent the total area of the square and the circle. What is the circumference of the circle when A is a minimum
1 answer:
Answer:
88.6647727273 cm²
Step-by-step explanation :
The perimeter of the square =(50/2)
= 25 cm
∴ Side of the square = (25/4)
= 6.25 cm
∴ Area of of the square = (6.25)²
= 39.0625 cm²
The circumference of the circle =(50/2)
= 25 cm
∴ 2πr = 25
⇒ r = 25/(22/7)(2)
Area of the circle = (22/7) { 25/(22/7)2} {25/(22/7)2}
= (25×25×7) / (2×2×22)
= 4365/88
= 49.6022727273 cm²
∴ Total area of the circle and the square =(49.6022727273+39.0625000000)
= 88.6647727273 cm²
Hope it helped
If yes mark BRAINLIEST!
You might be interested in
Answer:
Step-by-step explanation:
<u>The standard form is:</u>
<u>Convert the given into standard form:</u>
Answer:
C
Step-by-step explanation:
consistently goes down by 3.2 for the y value
X - invested for the money at 11% 70 000 - x - deposited at 12% 0.11x + 0.12(70000-x)=7900 0.11x + 8400 - 0.12x = 7900 8400- 7900 = 0.01x 500 = 0.01x x=50 000 invested at 11% rest (20K) invested at 12%
He put 1.86 pounds in each