Question

ABCD is a rectangle. Pis an inner point of the rectangle such that PA = 3. PB= 4. PC = 5, find PD.

• A. $\sqrt{18}$
• B. $\sqrt{17}$
• C. $\sqrt{16}$
• D. $\sqrt{15}$

Answer 1

Answer: (A)

$\sqrt{18}$

Given that,

$PA=3$

$PB=4$

$PC=5$

$PD=\sqrt{5^2+\left(3+4\right)}$

$=\sqrt{25-7}$

$=\sqrt{18}$

Option $\left(A\right)$ is correct answer.