What is the value of A in (121 x 7)-A=703 ?
1 answer:
You might be interested in
The tangent half angle formula, one of several, is
We have θ is opposite 4 in the 3/4/5 right triangle so
Answer: 1/2
This is actually pretty deep. It says half the big acute angle in the 3/4/5 triangle is the small diagonal angle of the 1x2 rectangle. Similarly, the small acute angle in 3/4/5 triangle is twice the small diagonal angle of the 1x3 rectangle.