this is what would make sence for me
the frist one was confusing
If it’s red rectangle to blue then it’s 1/2
If it’s blue rectangle to red then it’s 2
We know the cofunction identity

.
Thus, the tangent of 90° minus <span>θ also equals
5.</span>
The value of x is 21.
To find this one, we need to know the formula with intersecting lines outside of the circle.
It is that if you subtract the smaller arc from the larger arc and divide by 2, you will have the exterior angle.
Therefore, we can write and solve the following equation:
(5x - 63) / 2 =x
5x - 63 = 2x
3x = 63
x = 21
6:50 is the answer! Hope this helps. You can figure this out by crossing out the ones you KNOW are factors of 4 and 20. And 6:50 is NOT a factor of them . Hope this helped!!