Mathematics
Show that in a right angled triangle, the hypotenuse is the longest side.
Triangles
21 Likes
Answer
In △ABC,

∠B = 90°
∠A and ∠C are acute angles i.e. less that 90°.
∴ ∠B is the greatest angle.
∴ ∠B > ∠A and ∠B > ∠C
⇒ AC > BC and AC > AB.
Hence, proved that hypotenuse is the longest side in a right angled triangle.
Answered By
12 Likes
Related Questions
In the adjoining figure, ABC is a right triangle with AB = AC. Bisector of ∠A meets BC at D. Prove that BC = 2AD.
In △PQR, ∠P = 70° and ∠R = 30°. Which side of this triangle is longest? Give reason for your answer.
PQR is a right angle triangle at Q and PQ : QR = 3 : 2. Which is the least angle?
In △ABC, AB = 8 cm, BC = 5.6 cm and CA = 6.5 cm. Which is
(i) the greatest angle?
(ii) the smallest angle?