Answer:
58°
Step-by-step explanation:
Good luck , hope it helped you :)
5^-1x3^-2=1/5x1/3^2=1/5x1/9=1/(5x9)=1/45
[[x]] means to round down to the greatest integer less than or equal to x.
All angles in a triangle add up to 180 degrees. So, if you are missing an angle, add up the degrees of the angles present and subtract that from 180. That will be the value of the missing angle in degrees.
Answer:
BC ≈ 1.71
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos70° = 
= 
= 
Multiply both sides by 5
5 × cos70° = BC , thus
BC ≈ 1.71 ( to the nearest hundredth )
