What is the unknown term in sequence ? 28.6 , 26.1, 23.6 ,__,18.6
2 answers:
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Answer:
10.3
Step-by-step explanation:
So first you get the angle of T which is 25 degrees
The you use the law of sine
Then you get s = 10.34763268
Round to nearest tenth
s = 10.3
The surface area of the triangular prism is 1664 square inches.
Explanation:
Given that the triangular prism has a length of 20 inches and has a triangular face with a base of 24 inches and a height of 16 inches.
The other two sides of the triangle are 20 inches each.
We need to determine the surface area of the triangular prism.
The surface area of the triangular prism can be determined using the formula,
where b is the base, h is the height, p is the perimeter and l is the length
From the given the measurements of b, h, p and l are given by
,
,
and
Hence, substituting these values in the above formula, we get,
Simplifying the terms, we get,
Adding the terms, we have,
Thus, the surface area of the triangular prism is 1664 square inches.