Answer:
First photo, I think they are all the same
Second, see below
Step-by-step explanation:
<u>Numbering is by the numbers next to the problem, not the order of the photos</u>
(2) Biggest area
[] Find alllll the areas and compare! Area is base x height divded by 2
[] A
2 x 4 / 2
8 / 2
4
[] B
2 x 4 / 2
8 / 2
4
[] C
2 x 4 / 2
8 / 2
4
[] D
2 x 4 / 2
8 / 2
4
Now, I think this is a trick question and they are all the same areas. I am not 100% sure, but if you do the math that is what you get :)
(1) Drawing heights
[] The height is from the middle of the base to the point across. For the one on the left you would find the of the base and draw a straight line into the corner across from it at the bottom right.
[] The one on the right would be the same, but it would go into the narrower corner on the top
(Hopefully this helps and is correct! Have a nice day :D)
Li needs 3 more pieces, an 1 and 1/2 cut into 3 pieces.
Answer:
4x cm.
Step-by-step explanation:
Suares have to have all 4 sides equal. The area of the rectangle (2x8) is 16.
16/4 = 4, so the square has sides of 4cm each to equal an are of 16. (4x4=16)
We need to apply trigonometry for easy calculations.
Let Z represent the ramp.
sin x = wall divided by the ramp
Let x = 7°.
sin 7° = 2.5/Z
We now solve for Z.
Z = 2.5 ÷ sin 7°
Z = 20.5137726212
We round off to the nearest tenth of a foot. This means to round off to the ones place.
Z = 21 feet
Done.