find the difference between the sums of the first ten terms of the A. PS where first terms are 12 and 8 and whose Common difference are 2 and 3 respectively​

Number 5 the answer is 112 degrees

Number 6 is 62 degrees

Number 7 is 45 degrees

Step-by-step explanation:

A straight edge is 180 so you take the outside number (outside of the triangle) subtract it from 180 you get a number you add that number you just got to the other number in the triangle whatever number you got for that a triangle equals 180 so you subject it from that and get your final answer.

So... number 5 you subtract 180-134 you get 46. Then you add 46+22 you get 68. Then 180-68 equals 112.