Question

please find no 1 for me kindly​

Answer 1

• Due to Pythagoras theorem

PR^2=PQ^2+QR^2

(20)^2=PQ^2+(12)^2

400=PQ^2+144

PQ^2=144-400

=256

taking square root on both sides

PQ=16

2.On calculating ,

AC =25

Answer 2

Answer:

PQ=$\sqrt{x} 20x^{2} -12x^{2}  </p><p>\\\\sqrt{x} 400-144\\\</p><p>sqrt{x} \\256=16</p><p><strong>Step-by-step explanation:</strong></p><p>ac=[tex]\sqrt{x} 20x^{2} +15x^{2}$

400+225

$\sqrt{x} 625$

=25