Answer:
Step-by-step explanation:
Given that ⊥ and is the midpoint of
As ⊥,
∠ and ∠ are right angles (Definition of perpendicular lines)
⇒∠≅ ∠ (All right angles are congruent)
T is the midpoint of (given)
⇒≅ (Definition of midpoint)
≅ (Reflexive)
Therefore, Δ≅Δ (by SAS criteria ):
conditions:
(a + b)² = a² + 2ab +b²
a = y & b = 10
(y + 10)² = y² + 2 *y*10 + (10)²
= y² + 20y + 100
I NEED A BIT MORE DETAIL LOL