Answer:
43
Step-by-step explanation:
180 - (109+28) = 43
the sum of all angles in a triangle is 180
Answer:
option a is correct.
Step-by-step explanation:
We have given the equation:

Squaring both sides of the above equation we get:

After simplifying the first step



After final simplification we get:

We are getting quadratic equation since, the degree in resultant is 2.
Therefore, option a is correct.
Answer:
15/2
Step-by-step explanation:
Answer:
im sorry i dont know but this is for a challenge
Step-by-step explanation: