Honestly photo math works for everything
Answer:
See below.
Step-by-step explanation:
It is the one at the top left side.
The line y = x passes through the origin at an angle of 45 degrees to the x axis and rises to the right.
So if you imagine its a mirror you'll see that its a reflection in that mirror.
Answer:
d. 8°
Step-by-step explanation:
It appears as though you intend ∠ECF and ∠ACB to be vertical angles, hence the same measure, 47°. The angle of interest, ∠BCD, is added to that to make ∠ACD, which is 55°. The added angle must be 55° -47° = 8°.
Step-by-step explanation:
The length of any side of a triangle must be less than the sum of the other 2 sides of the triangle.
Let x be the length of the 3rd side. Then we have constraints 5 + 12 > x and 5 + x > 12.
This gives 17 > x and x > 7, hence the answer is 7 < Length of the 3rd side < 17.