Answer:
what are the options?!? you should tell us so I can help
Answer:
2
due to the thenth being higher than the number five i would say round up so 9 becomes a solid number so the answers 2
just remember:
it goes ones decimal tenths hundreths thosenths
as well as five or more raise the score for or less let it rest
sorry for mispelling words its not my greatest skill
Given:
The bases of triangular prism are right triangles with a base of 12 inches and height of 9 inches.
The height of the prism is 11 inches.
To find:
The surface area of the triangular prism.
Solution:
Using the Pythagoras theorem, the hypotenuse of the bases of the triangular prism is:
Taking square root on both sides.
The surface after of the triangular prism contains 3 rectangles of dimensions 12 inches by 11 inches, 9 inches by 11 inches, 15 inches by 11 inches and two triangles with base 12 inches and height 9 inches.
Area of the rectangle:
So, the area of three rectangles are:
Area of a triangle is:
So, the area of the triangles is:
And, the triangles have same dimensions so their areas are equal.
Now,
Therefore, the surface area of the triangular prism is 504 sq. inches.
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