![yialefi](/avatars/10722.jpg)
yialefi
18.11.2019 •
Mathematics
Me answer number 4! and if you can, explain!
Solved
Show answers
More tips
- F Family and Home How to Teach Your Child to Speak: Tips and Recommendations...
- P Philosophy Agnosticism: Opinion or Belief?...
- S Style and Beauty How to choose the best mascara for your eyelashes...
- F Food and Cooking Discover Delicious Recipes You Can Make with Ground Meat...
- C Computers and Internet Google Search Tips and Tricks: Everything You Need to Know...
- S Science and Technology Why is there no gravity on other planets?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
- H Health and Medicine Kinesiology: What is it and How Does it Work?...
Answers on questions: Mathematics
- M Mathematics Benn Cornell and Tom Ingulli drove to Chicago a distance of 510 miles, their car gets 23 miles per gallon of gasoline. gasoline costs them $2.59 per gallon. how...
- S Social Studies Make separate lists showing the various states annexed into Nepal during the rule of Pratap Singh Shah,Rajendra Lakshmi,Bahadur Shah and Rana Bahadur Shah....
- M Mathematics Sarah saving to buy A new phone. She needs $150 And she has already Saved $63...
- M Mathematics Ben is choosing between two savings accounts. both accounts pay 3% interest. account x pays compound interest. account y pays simple interest. ben should choose...
- H History Match the following items. electors somebody who opposed the Constitution of the United 1. States and the idea of a strong national government the group of people...
Ответ:
The Table should look like this:
# of days # of Minutes
1 3
2 6
3 9
4 12
5 15
6 18
7 21
Ответ:
The given figure is a right triangular prism as we can see one of the sides having a right angle. The surface area is the sum of all the areas of all the faces of the prism.
Let us first find out the faces that the prism has
We can see that the prism has two right triangle bases at either sides
Then we can see that the sides are three rectangles.
So we are going to calculate the area of
two triangles with base = 9 cm, height = 12 cm
Three rectangles that has different lengths and widths
We need the third side of the triangle for this
Since its a right triangle and we have the two sides, we can use the pythagorean theorem to find the third side
c=![\sqrt{225}](/tpl/images/0444/2273/72078.png)
c=15
Now we have all the sides. Lets calculate the areas of each of the rectangles
R1 = Length × width = 15×18 = 270 sq.cm
R2 = 9×18 = 162 sq.cm
R3 = 12×18 = 216 sq.cm
The areas of the three rectangles are done
Now lets move on to the triangles
Area of triangle =
× base ×height
=
×9×12 = 54 sq.cm
We have two triangular faces
That would make 54× 2 = 108 sq. cm
Lets add up all the areas
270+162+216+108( areas of two triangles) = 756 sq. cm