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OlgaM077 [116]
2 years ago
10

Kiran bought a wedge with a central angle of pi/2 radians and a radius of 3 inches. What is the area of the top surface of this

wedge? Round your answer to the nearest hundredth.
Mathematics
1 answer:
VMariaS [17]2 years ago
5 0

The area of the top surface of this wedge is 14.14 inches².

<h3>What is the area of a sector?</h3>

The shape of the top surface of the wedge assumes the shape of a sector. So, to determine the area of the top surface of this wedge, we need to find the area of the sector.

Area of a sector = \mathbf{\dfrac{\theta}{360}\times 2 \pi r^2 }

where;

  • Central angle θ = π/2
  • radius = 3 inches

Area of a sector = \mathbf{\dfrac{\pi/2}{360}\times 2 \pi (3)^2 }

Area of a sector = \mathbf{\dfrac{90}{360}\times 2 \pi \times 9 }

Area of a sector = 14.14 inches²

Learn more about the area of a sector here:

brainly.com/question/22972014

#SPJ1

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Crunchy peanut butter cost $325 for 259 g. in shop b it costs $408 for 340 g.
Mariulka [41]
Shop B. This is cause shop A charges about $1.25 for each g of peanut butter, while Shop B charges only $1.20 for each g of peanut butter. Hope this helps!
6 0
3 years ago
5. PLEASE HELP
lana66690 [7]

Answer:

The potential energy of the ball having 2kg mass would be 392 J

Step-by-step explanation:

I am assuming the ball has a mass of 2 kg, as you have not mentioned the mass of a ball.

Considering the formula for calculating the gravitational potential energy

G.P.E\:=\:m.g.h

As

m = 2 kg

Acceleration of gravity = g = 9.8 ms^{-2}

As the ball is on the height = h = 20 meters

So,

G.P.E\:=\:(2)(9.8)(20)

G.P.E\:=392 J

Therefore, the potential energy of the ball = 392 J

Keywords: potential energy, Gravitation potential energy

Learn more potential energy from brainly.com/question/14022793

#learnwithBrainly

5 0
3 years ago
Write an expression to represent the perimeter of:
kotykmax [81]

"Perimeter" is the distance all the way around the drawing.  If the drawing has sides, then the perimeter is the SUM of the lengths of all the sides.  It's exactly the distance an ant would have to walk along the line, to get all the way around to where he started from.

To get the perimeter of the triangle, you have to add up the lengths of the three sides.

(2a - 3) + (2a) + (3a + 1) =

2a - 3 + 2a + 3a + 1 .

Add up all the 'a's: 2a + 2a + 3a = 7a

Add up all the just plain numbers: -3 + 1 = -2

Write them together, as a binomial:  7a - 2

THAT's your expression for the perimeter.

4 0
3 years ago
6 decigrams = milligrams
malfutka [58]
1 decigram = 100 milligrams

6 decigrams = 600 milligrams
6 0
3 years ago
M. Hernandez plans to purchase shades for her 8 windows and would like to keep the cost under $1,100. There will be an installat
expeople1 [14]

Answer:

117

Step-by-step explanation:

1,100 - 160 = 940

940 ÷ 8 = 117.5

you round down to 117

6 0
3 years ago
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