How do you find the surface area of this figure?

Answers

Answer 1

Answer:

Answer:

SA=158cm²

Step-by-step explanation:

To find surface area, you find the area for all the surfaces and add them together. Let's start with the red rectangular prism first.

The top has measurements of 5 and 2. The area of that is 10.

The bottom is the same so it's area is also 10 but we don't want to add it since it's not on the surface.

The side facing us has measurements of 4 and 2, the area is 8.

The side opposite to this is the same so it's area is also 8

Now the right face of this shape is 4 and 4 so 16.

The left face will have the same area. It'll also be 16.

The surface area of the red shape is 10+8+8+16+16= 58

Now the orange shape.

The side facing us is 5 and 3 so area=15

The side opposite to this will have the same area.= 15

The right face is also 5 and 3 so 5x3=15

The opposite face to this will also have an area of 15

Now the top face, it's 5 and 5 = 25. We have to subtract the area covered by the red shape. So 25 - 10 = 15

The bottom face's area will be 25.

The surface area of this shape will be : 15+15+15+15+25=100

Now add the areas of both shapes

58+100 = 158

SA=158cm²

Hope this helps :)

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How to do multply the simple way?

Answers

Answer:

HOPE THIS HELPS

Step-by-step explanation:

Lattice multiplication

Lattice multiplication, also known as the Italian method, Chinese method, Chinese lattice, gelosia multiplication, sieve multiplication, shabakh, diagonally or Venetian squares, is a method of multiplication that uses a lattice to multiply two multi-digit numbers.To multiply using the box method, first, write each number in expanded form. Then create a box that is the size of the number of digits for each number being multiplied. Next, fill in the box by multiplying the numbers that correspond to each row and column. Finally, all of the numbers inside the box to get the final answer.

Answer: Sorry if my english is bad

Step-by-step explanation: Line up the numbers on top of each other. It will be much easier. Also, if you have two digit numbers, multiply the first column and then the second column (same goes for bigger numbers). An easy way to learn your times tables is to start off with adding multiple of the same number. For example, 3+3+3 = 9 and 3 x 3 = 9

How many terms are in the arithmetic sequence 7, 0, –7, …,–175?

Answers

Answer:

27 terms

Step-by-step explanation:

a1 = 7

nth term is -175

common difference d= 0-7 = -7 or -7 - 0 = -7

nth term = first term + ( n-1) * common difference

-175 = 7 + ( n - 1 ) * (- 7)

-175 = 7 - 7n + 7

-175 = 14 - 7n

-175-14 = -7n

-189 = - 7n

n= -189 /-7

n=27

When I double my number add four and divide by two

Answers

You will get a number that's 2 more than the number you started with.

you will get a number that's 2 more than u started with

Figure WXYZ ~ figure WꞌXꞌYꞌZꞌ.

What is the value of a?

Answers

8/2=16/a
cross multiplying
8a=32
a=32/8
a=4

Hey do you remember the answer possibly? I have the same question and I've tried but I don't think I'm doing it correctly. :(

Marilyn has 10 caramels, 12 mints, and 14 bars of dark chocolate in a bag. She picks three items from the bag without replacement.The exact probability that Marilyn picks a mint, then another mint, and finally a bar of dark chocolate is -------?