B, C, and D. you name a triangle with the corners, not the sides.
6x² + 12x - 21
3(2x² + 4x - 7)
2x² + 4x - 7 ⇒ This is the factorised answer
This is how you solve it:
Answer:
74 degrees
Step-by-step explanation:
Start w/180 degrees. (The total measure of a triangle.) Then subtract 106 (the sum of the 2 known angles) from 180. We then get 74 degrees (The measure of the missing angle)
Answer:
x = 29
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 angles and equate to 180
3(x + 2) + 52 + 35 = 180
3x + 6 + 52 + 35 = 180
3x + 93 = 180 ( subtract 93 from both sides )
3x = 87 ( divide both sides by 3 )
x = 29