Question

6. (a) Find the other angles in a parallelogram ABCD, if <B =<60°
(b) In a right angled triangle, if one angle is 65°, find its third angle​

Answer 1

Answer:

( a) <a= 120° , <c= 120°, <d= 60° because we know that all opposite angle of parallelogram are equal.

(b) <a+<b+<c= 180

let other angle be "x"

x+ 90°+65°=180

x+ 155°=180

x= 180°-155°

x= 25°