20/25*2(5-10)=20/25*10-20 later calculate the numbers
Answer:
17.7
Step-by-step explanation:
angle B = 180 - 81 - 65 = 34 degrees
as the sum of all angles in any triangle is always 180 degrees.
a/sin(A) = b/sin(B) = c/sin(C)
the sides are always on the opposite side of the angle.
so,
10/sin(34) = AB/sin(81)
AB = 10×sin(81) / sin(34) = 17.7
The answer is in the image!
C because -3 is less than 2 and we’ll stay the same
Answer is the first one on left
