xenon108
xenon108 xenon108
  • 24-03-2020
  • Mathematics
contestada

#1 Determine if AB is tangent to the circle centered at point C. Explain your reasoning. * PLZ HELP

1 Determine if AB is tangent to the circle centered at point C Explain your reasoning PLZ HELP class=

Respuesta :

shilpa85475 shilpa85475
  • 01-04-2020

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 Link

Otras preguntas

What term describes biotic effects that increase in intensity as the population in an area increases?
Prove why 0.87 recurring is equal to the fraction 87/99 (Ps both the 8 and the 7 are recurring)
Is 9.664 bigger than 1.664
what is the common multiple of 6 and 15?
how do you simplify, if possible, 3pq x 5qp?
Sari has 3 times as many pencil erasers as Sam. Together, they have 28 erasers. How many erasers does Sari have?
The perimeter of a rectangular slab of concrete is 24 meters. If the length of the rectangular slab is 2 meters longer than its width, what is the width of the
What times what equal to 17 and 25
Twelve cows produce 224,988 pounds of milk. Find the unit rate in pounds per cow.
What is the maximum value of the decimal 18.6