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Goshia [24]
3 years ago
11

What is the total combined area

Mathematics
1 answer:
Helga [31]3 years ago
7 0

Answer:

Total area is all area of a 2D shape or 3D shape combined.

You need to write out a formula for each shape.

Shape 1 ) A = L x H  for any 4 sided 2D shapes

Shape 2) For irregular 4 sided 2D shapes you need to draw a line to create 2 triangles

L x L x L  +   L x L x L  = A

Shape 3) For Trapezoid

Surface area can be given with this formula: Surface Area of Trapezoidal Prism = (b1+b2)h + PH. In this formula, b1 and b2 stand for the length of the bases of the trapezoid. Lower case h is the height of the trapezoid. Upper case P is the perimeter of the trapezoid, and upper case H is the height of the prism

Shape 4 cuboid or prism

You take the surface area x (above)

so that;

A + A of each face = Total combined Area.

Except for Rectangular prism where we first find the longer L x H = A

Then;  A + A of each face if 3 different sizes faces would be A x 2  A x 2 A x 2. if 2 different sizes would be A x 2 A x 4 so that prism with 6 sides would equal 6

Some prism have 5 sides like a triangular prism

A x 2  A x 3

We would do the rectangles first to remind us the process of Volume for other questions.

------------

For circles we use A = π × r2

For cylinders we use A of the circle (just mentioned) so that A+ A are the circular areas then work out the area of the Side and add them using the formula  2πr2 + 2πrh.

Formula for sphere =A=4πr2

Step-by-step explanation:

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The cost of a train ticket increases by
erastova [34]

It costs $122.4 dollars before the increase.

<h3>How to calculate percentage of a number. Use the percentage formula: P% * X = Y</h3>
  • Convert the problem to an equation using the percentage formula: P% * X = Y.
  • P is 17%, X is 7.20, so the equation is 17% * 7.20 = Y.
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Therefore, It costs $122.4 dollars before the increase.

Learn more about Finding the Percentage here:

brainly.com/question/24862040

6 0
2 years ago
A 36 ft tree casts a 9 ft shadow at the same time a building casts a 15 ft shadow. How tall is the building?
mote1985 [20]

Answer: The height of the tree is  27f t

Step-by-step explanation: We can set up a proportion comparing the height of each object to the length of the shadow.

h/s

h/15=18/10

Cross multiply

10.h= 18*15

10h=270

Use the multiplicative Inverse

10 h/ 10 = <em><u>270 /10 =27</u></em>

7 0
3 years ago
Expressions equivalent to 6x+4
stiv31 [10]
2(3x+2) I couldn’t find any other ones, your best bet would be to go into decimals or fractions if you want to find more.
6 0
3 years ago
An equivalent expression for sin x is?<br><br>(please answer with steps)​
Anestetic [448]

Answer:

b

Step-by-step explanation:

Using the trigonometric identity

sin2x = 2sinxcosx

That is the angle on the right side is half the angle on the left, thus

sinΘ = 2sin(\frac{1}{2} Θ )cos(\frac{1}{2}Θ ) → b

5 0
3 years ago
How could you solve this problem?
Rudiy27
I do A and B but that is the way I learned it. Hope this helps :)
7 0
3 years ago
Read 2 more answers
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