Answer:
The surface area of the cube is 
Step-by-step explanation:
step 1
Find the length side of the cube
we know that
The diagonal of a cube is equal to

where
b is the length side of the cube
In this problem we have

substitute and solve for b


step 2
Find the surface area of the cube
The surface area of the cube is equal to

substitute the value of b

Puedes multipilar 1/4 con 4, que te da 4/16. Sumas los dos y quedas con 11/16. Restas 16 de 11, y tu resultado sera 5/16.
Answer:
<em>x</em><em>=</em><em> </em><em>105</em><em>°</em>
Step-by-step explanation:
<em>one</em><em> </em><em>interior angle of a</em><em> </em><em>hexagon</em><em> </em><em>is</em><em>=</em><em> </em><em>120</em><em>°</em>
<em>one</em><em> </em><em>interior</em><em> </em><em>angle</em><em> </em><em>of</em><em> </em><em>a</em><em>n</em><em> </em><em>octagon</em><em> </em><em>is</em><em>=</em><em> </em><em>135</em><em>°</em>
<em>360-255</em><em>=</em><em> </em><em>105</em>
No the rectangle cannot have x = 60 and y = 11 because x = 48 + 2y
Answer:
x =25
<B = 65 degrees
<C = 50 degrees
Step-by-step explanation:
65 + (3x-10) +2x = 180
Add like terms:
55 +5x = 180
Subtract 55:
5x = 125
Divide by 5:
x = 25
Substitute for x and solve