1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ruslelena [56]
2 years ago
15

This composite figure is made up of three simpler shapes. What approximate area of the figure use 3.14 for Pi. A,B,Cor D?

Mathematics
2 answers:
photoshop1234 [79]2 years ago
7 0
If I’m right it should be 24.28 I did Alex
Sophie [7]2 years ago
5 0

Answer:

B. 24.28 square feet

Step-by-step explanation:

To find the area of the entire composite figure, you will want to <u>find the</u> <u>area of each shape in it and add them up</u>. Personally, I like to start with the easiest one so in this case I would start with the rectangle.

To find the area of the rectangle, you must multiple length and width (l × w or b × h). So you would multiple 4ft by 3ft in this problem. The area of the rectangle then is 12 squared feet (12 ft²).

Next, find the area of the triangle using the formula 1/2×b×h (base= b; height= h). This is because since triangles are basically just squares and rectangles cut in half, all you would do it do the extra step of multiplying it by 1/2. In this problem, after substituting, you would get 1/2(4)(3). The area of the triangle then is 6 squared feet (6 ft²).

Finally, you want to find the area of the semi-circle. To do so, you must use the formula for finding the area of a circle which is π(r)². It is important to pay attention to what is given in the problem because of including the wrong number in your calculations.

In this problem, you are given the diameter of a circle, but what you need is the radius (per the circle area formula) so all you need to do it half it.

<em>Diameter= 2r or Radius = 1/2D </em>

This gives you the fact that the radius of a circle from this problem is 2 because the diameter is 4. <em>HOWEVER</em>, you need to remember that this problem is not asking you to include the area of a circle, it is asking for a <em>semi</em>-circle. This means that you would have to half the answer you get.

There are two easy ways of doing so for this case like:

1/2 π(2)²    1/4 π (2)²  

Just plug either equation into the calculator and have it solved to have the area of the semi-circle.

The last and easiest step is just <u>adding all 3 areas calculated</u> to get the approximate total area of the figure!

<h2>12+6+6.28= 24.28 squared feet (24.28 ft ²)</h2>
You might be interested in
Matthew is standing near a flag pole as shown in the picture. There is a support wire that has been place on the ground to the t
mash [69]

Answer:

60

Step-by-step explanation:

10 x 6 is what?

Took the test :p

7 0
3 years ago
a triangle has a side length of 3/4 inch and a side length of 3in what could be the length in inches of the third side of the tr
eimsori [14]
I think the answer will be 6.75
6 0
3 years ago
What's y=-4+15 in standard form
kotykmax [81]

Answer:

y=1.1×10¹

Step-by-step explanation:

y=-4+15

y=11

y=1.1×10¹

5 0
2 years ago
Can somebody help me with this problem
soldier1979 [14.2K]
115 degrees because there are 180 degrees in a triangle so let the missing angle in the trinagle be x. Then we have x+75+40=180. Solving for x and subtracting that from 180 (supplementary angles) we get 115 degrees.
4 0
3 years ago
(3x + 3x²) + (2x² + 2x)?​
Galina-37 [17]

Answer:

=5x2+5x

Step-by-step explanation:

Let's simplify step-by-step.

3x+3x2+2x2+2x

8 0
3 years ago
Other questions:
  • PTC is a substance that has a strong bitter taste for some people and is tasteless for others. The ability to taste PTC is inher
    7·1 answer
  • Point Z is the incenter of ΔWXY.
    6·2 answers
  • if a right angle has a hypotenuse of 19 units and a leg with the length of 7 units, find the length of the other leg
    8·1 answer
  • A segment has endpoints A(-3,5) and B(2,1) find the midpoint M of the segment
    9·2 answers
  • Graph the following system of equations and find the x-coordinate of the solution.
    9·1 answer
  • Please answer correctly! I will mark you as Brainliest!
    5·1 answer
  • 5n+11n what is the answer
    11·1 answer
  • Help please. time is really hard for me! Thanks
    11·2 answers
  • PLEASE ASAP, DONT LIE ABOUT THE ANSWER, I'LL KNOW.
    6·1 answer
  • Sean is choosing what size gloves to order from an online store. He estimates that his hand is 20 centimeters long. When he meas
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!