Step-by-step explanation:
sin α - sin β = 2 cos (α + β)/2 sin (α - β)/2
sin 70° - sin 50° = sin 10°
2 cos (70° + 50°)/2 sin (70° - 50°)/2 = sin 10°
2 cos 120°/2 sin 20°/2 = sin 10°
2 cos 60° sin 10° = sin 10°
2 (½) sin 10° = sin 10°
sin 10° = sin 10° → <u>Proved</u>
If you take away the 0s you can multiply 8 and 3. sooooo
3x8=24
ANSWER: The angles opposite to the two sides of the same length are congruent. A triangle without any congruent sides or angles is called a scalene triangle.
BRAINLIEST?⭐️
You can flip a coin, heads can be true and tales can be false.