BE is congruent to overline CF since they are altitudes of the same trapezoid(S).
AB is congruent to overline CD (Given)
AE is congruent to overline FD by the Hypotenuse Leg Theorem.
triangle ABC is congruent to triangle DCF (SSS Triangle Congruence)
angle A is congruent to angle D since corresponding parts of congruent triangles are congruent.
If you mean proof that the opposite sides of a parallelogram are equal, you draw a diagonal then prove that the 2 triangles formed are congruent.
I hope this helps you
begin jons all book 4a
sold 4a.3/4=3a
remaining book 4a-3a=a
3 purcased book a+3=11
a=8
4a=4.8=32 jons all book
Answer: √90=3√5⋅2=3√10
Step-by-step explanation:
Simplify the expression shown below.(6+8i)(4-7i)