Advertisements
Advertisements
प्रश्न
The sides of a certain triangle is given below. Find, which of them is right-triangle
6 m, 9 m, and 13 m
उत्तर
6 m, 9 m, and 13 m
The given triangle will be a right-angled triangle if the square of its largest side is equal to the sum of the squares on the other two sides.
i.e., If (13)2 = (9)2 + (6)2
169 = 81 + 36 = 169 ≠ 117
So, the given triangle is not right-angled.
APPEARS IN
संबंधित प्रश्न
A ladder 10 m long reaches a window 8 m above the ground. Find the distance of the foot of the ladder from base of the wall.
In an equilateral triangle, prove that three times the square of one side is equal to four times the square of one of its altitudes.
Tick the correct answer and justify: In ΔABC, AB = `6sqrt3` cm, AC = 12 cm and BC = 6 cm.
The angle B is:
Prove that the points A(0, −1), B(−2, 3), C(6, 7) and D(8, 3) are the vertices of a rectangle ABCD?
Diagonals of rhombus ABCD intersect each other at point O.
Prove that: OA2 + OC2 = 2AD2 - `"BD"^2/2`
Find the length of diagonal of the square whose side is 8 cm.
In ∆ ABC, AD ⊥ BC.
Prove that AC2 = AB2 +BC2 − 2BC x BD
In the figure, find AR
If S is a point on side PQ of a ΔPQR such that PS = QS = RS, then ______.
If the areas of two circles are the same, they are congruent.
