Answer:
x = 65.4
The answer is 65.4 degrees.
Step-by-step explanation:
You can use either sine, cosine, or tangent to find the measure of angle x, but since the lengths of the adjacent leg and the hypotenuse are already given, cosine will be the easiest to use. The adjacent leg is 5 units long, and the hypotenuse is 12 units long.
Remember, cos(x) = adjacent / hypotenuse.
cos(x) = 5/12
( ) both sides
(cos(x)) = (5/12)
Simplify ((cos(x)) ⇒ x)
x = (5/12)
Use calculator (make sure it is in degrees, not radians)
x = 65.37568165...
Round to the nearest tenth
x = 65.4
I hope this helps.
Answer:
1884
Step-by-step explanation:
To find the volume you have to follow this formula V=πr^2 h/3
Ill type it in words because they plugins look funky.
Volume equals pi times radius squared times h/3
basically you square your radius which is 10 so you get 100
then you multiply that by pi(3.14) now you get 314
you have to divide your height by 3 so you get 18/3 which is 6
so now you multiply 6 by 314 and you get 1884
100x56 the answer is 5,600
Answer:
I only know the first one.
The surface area of the prism is <u>900</u> cm2
Step-by-step explanation:
To solve the surface area, we need to find the area of the SURFACE not the inside of the cube. Lets do the rectangles first.
28 x 13 = 364
28 x 5 = 140
28 x 12 = 336
1 1
336
+ 140
364
-------------
8 4 0
Now lets do the triangles.
Remember! To find the area of a triangle, you have to do Base x Height x 1/2 because it's half a rectangle.
(The triangles have the same area)
12 x 5 x 1/2 = 30
12 x 5 x 1/2 = 30
30
+ 30
--------
60
The last step is to add the areas of the triangles and the rectangles.
1
840
+ 60
------------
900 cm2
<em>The answer is 900cm2</em>
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This <u>Is not</u> copy pasted, I actually put in all this effort.
Hope this helps :) And have a wonderful day! :D
The answer to the problem is 8/20