Answer:
α ≈ 76°
Step-by-step explanation:
The vertices of a rectangle are right , that is 90°
Using the tangent ratio in right triangle ABC
tanα = = = = 4, then
α = (4) ≈ 76° ( to the nearest degree )
No . but she can buy 2 of the books but not all 3
2x and 7x is the answer of the questions
Answer:
m<A = 90° - m<B
(AB)^2 = (AC)^2 + (BC)^2
sin A = cos B
if <A = <B, then m<A = 45°