Hello please help me with this I need an answer immediately thank you so much see image

Question

asked Sep 7, 2019 69.3k views

1 Answer

Vikas Ojha · Answer 1 · 2019-09-13T14:24:20+0000

We know that:

PA = PB = 15

Using the Pythagorean theorem in the right triangle on the right we have:

CP ^ 2 = CB ^ 2-PB ^ 2

Then, again using the Pythagorean theorem in the right triangle on the left we have:

CA ^ 2 = CP ^ 2 + PB ^ 2

Substituting values:

CA ^ 2 = (CB ^ 2-PB ^ 2) + PB ^ 2

Rewriting the expression:

CA ^ 2 = CB ^ 2

CA = CB

CA = 15

Answer:

The value of CA is given by:

CA = 15