Answer:
A) 20°
Step-by-step explanation:
Sine and cosine are co-function complements which means that value of sine of an angle is equal to the value of cosine of the complementary angles.
This can be represented by:


Given statement:

Applying co-function complements

Since, we can represent 70° = 90°-20°
So
Thus,
makes the statement true.
The surface area of the triangular prism is 1664 square yards.
Explanation:
Given that a triangular prism is 20 yards long and has a triangular face with a base of 24 yards and a height of 16 yards . the other two sides of the triangle are each 20 yards.
<u>Surface area of the triangular prism:</u>
The formula to determine the surface area of the triangular prism is

where base
,
height
,
length
and
Perimeter 
Substituting these values in the above formula, we get,



Thus, the surface area of the triangular prism is 1664 square yards.
Theyre similar so answer is B
Answer:
Not accomplishable.
Step-by-step explanation:
Could you please stucture this question more simply. This partly doesn't make sense, unless I am wrong.