Respuesta :
Answer:
Hypotenuse^2 = opposite^2 + adjacent^2
Explanation:
The diagram of the triangle has been attached to the solution.
Side length of the triangle: 18.5, 15.5, 10
To prove a right angle triangle, we would apply Pythagoras theorem
Hypotenuse^2 = opposite^2 + adjacent^2
Hypothenus is the longest side of a right angle triangle
Opposite is the length facing the angle theta at the base. Also referred to as the perpendicular
Adjacent is the base
Hyp^2 = opp^2 +adj^2
Hyp^2 = 18.5inches , opp= 15.5inches, adj= 10 inches
Hyp^2 = 18.5^2 = 342.25
opp^2 +adj^2= 15.5^2 + 10^2
= 100+240.25 =340.25
342.25 is not equal to 340.25
Since Hyp^2 is not equal to (opp^2+adj^2), it is not a right-angled triangle.
Except there is an error with the figures in the question, the lengths given in the triangle would not give a right angle triangle.

Answer:
A Triangle is right angled with one angle 90⁰
Step-by-step explanation:
Given Δ LMN has side has side lengths of 18.5 inches, 10 inches, and 15.5 inches.prove triangle LMN is a right triangle
Given:
Δ LMN has side lengths of 18.5 inches, 10 inches, and 15.5 inches
∠M = 90⁰ , right angled at 90⁰
To prove:
Δ LMN is a right triangle
Proof:
In Δ LMN,
∠L+ ∠M + ∠N = 180⁰ angle sum property in a triangle
∠L+ ∠90⁰+ ∠N = 180⁰ Given ∠90⁰ = M
∠L + ∠N = 180⁰ - 90⁰ = 90⁰
LN² = LM² + MN² Pythagoras theorem
LN = √( LM² + MN²) = Hypotenuse LM ⊥ MN
Δ LMN is right triangle proved
