if the ∡E = ∡F = 90°, that means for that quadrilateral of BEGF, the other angles are ∡B = ∡G = 90°, which means is a square, meaning all its sides are equal, therefore

A^2 - 11^2 = ( a - 11 )( a + 11 ), because we have the formula d<span>ifference of squares, a^2 - b^2 = ( a - b )( a + b );</span>
Answer:
Step-by-step explanation:
If they meant 10 sets of push-ups, then she did 45. if they just meant 10 push-ups, it is 25.
And the answer is simple too : )
Second table :- y/x= 3 /2 so K = 3/2
Third table:- y/x = 117 and K = 117