Question

explain the 10nt one plz
and plz don't Answer gibberish I am preparing for my important exams​

Answer 1

Step-by-step explanation:

We have, Quad. PQRS

We know that, angle sum property of quadrilateral = 360°

Therefore, angleP+angleQ+angleR+angleS=360°

=> angleP+65°+angleR+105°=360° ------ equation 1

Given that angleP and angleR are in ratio 3:7

Therefore let the angle be x

=> angleP = 3x, and angleR = 7x

Putting the values in equation 1,

=> 3x + 65° +7x + 105° = 360°

=> 10x + 170° = 360°

=> 10x = 360°-170°

=> 10x = 90°

=> x =

$\frac{90}{10}$

=> x = 9

Therefore, angleP 3x = 3x9 = 27°

angleR 7x = 7x9 = 63°

Now, angleP+ angle a = 180° (Linear pair angles of a straight line)

=> 27°+ angle a = 180°

=> angle a = 180°-27° = 153°

ANSWER: d) none