Answer:
°
°
°
°
°
°
Step-by-step explanation:
The triangles are drawn below.
Since, CD is the height to AB, therefore, CD is perpendicular to AB.
Therefore, angles °
Also, is same as .
Therefore, °
Now, triangles ΔCBD and ΔCAD are right angled triangles.
So, for the right angled triangle ΔCAD,
Now, from the figure,
From ,
Hence, all the angles of the triangles ΔCBD and ΔCAD are:
°
°
°
°
°
°
5.7 is the answer because if one side is 7.9 the parallel is the same a rectangle. The is you add those, you get 15.8. The equation now is 15.8+x=27.2. 27.2-15.8 is 11.4 which is then divided to find the two sides which makes them 5.7.
Multiply both sides by b
a=cb
divide both sides by c
a/c=b
b=a/c