Answer:
394.9 cm
Step-by-step explanation:
The formula for a cone's surface area is A = π r ( r + √r^2 + h^2 ).
r = radius
h = height
The Pythagorean theorem, a^2 + b^2 = c^2, will be needed to find the height.
Plug in the values.
a(unknown)^2 + 6^2 = 15^2
A + 36 = 255
255 - 36 = 189
√189 ≈ 13.7
Surface area formula, plug in the values.
A = 3.14 × 6 ( 6 + √6^2 + 13.7^2 )
*PEMDAS*
A = 3.14 × 6 ( 6 + √36 + 187.69 )
A = 3.14 × 6 ( 6 + √223.69 )
A = 3.14 × 6 ( 6 + 14.95 )
A = 3.14 × 6 ( 20.96 )
A = 3.14 × 125.76
A = 394.8864
*round to nearest tenth*
A = 394.9 cm
Hope this helps! :)
Answer:
and 
are two such planes.
Step-by-step explanation:
To find the two planes whose intersection is the line
You can say that <em>t</em> is equal to this expression
Next,
Then,
and are two such planes.
You can see in the image attached that the intersection of this planes is the line
Answer:
i'm too afraid to answer questions that have this much points but to give all this away you must have a lot also ur supposed to prove abc and ced those are points on the triangle
Step-by-step explanation:
Answer:
Rosie is correct
Step-by-step explanation:
can i get brainliest
Answer:
X =6
Step-by-step explanation:
24/12 : (5x+2)/16
Solve
