Question

Answer 2 Pleaseeeee !​

Answer 1

Step-by-step explanation:

Length of OB is not visible so that i am taking it as (x-8) .... just see the process

Since,

It is right angle triangle we apply Pythagoras Theorem to it,

AB² = AO² + OB²

(x+1)² = (x+2)² + (x-8)²

x²+1+2x = x²+4+4x + x²+64-16x

x²+2x+1 = 2x²-12x+68

x²-14x+67 =0

Now,

find the value of x and put it in all three sides you will get it....

Answer 2

Answer:

19.364

Step-by-step explanation:

Wkt,

AB^2=BC^2+AC^2

HENCE,

PO^2=BO^2+PB^2

Therefore,

20^2=5^2+PB^2

Rearrange,

PB^2=20^2-5^2

PB^2=400-25

PB^2=375

PB=√375

PB=19.364/.....

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