Answer:
- 24 cm²
- 6400 -1600π ≈ 1373.45 square units
Step-by-step explanation:
1. You can look at this several ways.
It can be considered to be a stack of 1+2+3 = 6 squares that are 2 cm on a side, so have a total area of 6 × (2 cm)² = 24 cm².
You can lop off one of the squares sticking out and put it into the empty corner to form a 6 cm by 4 cm rectangle with an area of (6 cm)(4 cm) = 24 cm².
You can consider it to be a 6 cm square with 3 squares cut out of it that are 2 cm on a side: (6 cm)² -3(2 cm)² = (36 -12) cm² = 24 cm².
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2. The shaded area is the difference in areas of a square 80 units on a side and a circle of 40 units radius. If we let d represent the side dimension of the square, then the area formulas are ...
Square area = d²
Circle area = π(d/2)²
So the difference area is ...
shaded area = d² -(π/4)d² = d²(1 -π/4)
For d=80, the shaded area is ...
shaded area = 80²(1 -π/4) = 6400 -1600π ≈ 1373.45 square units
Answer:
621,345
Step-by-step explanation:
Easy Here you goo
Answer:
34.5 feet of material for 3 hat and scarf sets.
Step-by-step explanation:
First, we need to convert all measurements to the same unit: foot. (Because the answer is requested in foot)
1 yard is equal to 3 feet, and 1 inch is equal to 0.08333 feet.
3 yards are equal to 9 feet, and 30 inches are equal to 2.5 feet.
We need 3 sets of hat and scarf, so this means that we need 3 hats and 3 scarfs.
One scarf needs 9 feet of material, so 3 scarfs need 27 feet.
One hat needs 2.5 feet of material, so 3 hats need 7.5 feet.
In total, 3 scarfs and 3 hats need 27+7.5=34.5 feet of material.
7+3= 10
Let's take 1,400 is to be seperated between A and B
Amount of money A will get = 1400* 7/10= 980
Amount of money B will get = 1400* 3/10= 420
Checking the answer:
980+420 = 1,400
Hence, 1,400 will be shared by ratio 7:3 is 980 and 420.
Correct me, if I am wrong :)
Have a great day!
Thanks!
