M/_A= 120°
m/_B=30°
m/_C= 100°
sum of all the angles=120+30+100 = 250°
A Prime Number can be divided evenly only by 1, or itself.
<span>And it must be a whole number greater than 1.
</span>Example: 3 can only be divided evenly by 1 or 3, so it is a prime number.
Answer:
Step-by-step explanation:
9 = 3 × 3
12n = 2 × 2 ×3 × n
Greatest common factor = 3
9+12n = 3×3 +3×4n = 3(3+4n)