Cot A=1/tan A=12/5
cos A= 12/13
sin A=5/13
Draw a right angled triangle
the hypotenuse is the longest side which is 13 using Pythagoras theorem
the side opposite the angle A is 5
the side closest to the angle A which is called the adjacent is 12
sinA =opp/hyp
cos A= adj/hyp
cotA =1/tanA=cos A/sinA
Note: Pythagoras theorem is
hyp²=opp²+adj²
A scalene triangle can be identified by the inequality of the lengths of its sides and size of its angles.
Answer:
Step-by-step explanation:
First add 5x to 12x which becomes 17x and subtract 8 from 12 which becomes 4. So the answer is 17x+4!
Answer: B. 136
Step-by-step explantion:
LxWxH for the two parts of the figure give you 112 and 24 and they add to 136.
<span>y = 2x - 1 it the answer.</span>
