AB is a tangent to the circle
Solution:
Given data:
AB = 21, AC = 20 and BC = 29
To prove BC² = AB² + AC²:
BC² = 29²
BC² = 841
AB² + AC² = 21² + 20²
= 441 + 400
AB² + AC² = 841
So, BC² = AB² + AC².
Therefore by Pythagoras theorem, angle A is right angle.
Therefore AB is a tangent to the circle.
Answer:
your teacher can help you
Answer:
slope = 3, point = (6, -2)
Step-by-step explanation:
This is in point-slope form which looks like this : y-y1 = m(x-x1).
m is the slope, an x1 and y1 are the x and y coordinates of the point. Remember to flip the sign of the numbers for the points i.e. the y+2 in the equation becomes -2 for the point.
Answer:
72 degrees
Step-by-step explanation:
360/5=72
