Question

*Q1. कौन से विकल्प में लिखा कथन सही नहीं है?
Which of the following options is not
correct?
RHS प्रतिबंध में एक कोण 90 डिग्री का होता है
RHS criterian has an angle of 90
degrees
दो कोण और एक भुजा के माप से त्रिभुज बनाया
जा सकता है A triangle can be formed
by given two angles and one side.
O त्रिभुजों में AAA सर्वांगसमता भी होती है
Triangles also have AAA criterian
congruency
सभी विकल्प सही हैं All options are
correct​

Answer 1

Answer :-

Option A) RHS criterian has an angle of 90° .

Explanation :-

• RHS is between two right angled triangles . it says that the hypotenuse and one side of one right angled triangle are respectively equal to the hypotenuse and one other side of another right-angled triangle then the two triangles are congruent.
• Since in a right angle ∆ , angle opposite to hypotenuse is equal to 90° .

So, Option A is correct Statement.

Option B) :- A triangle can be formed by given two angles and one side.

Explanation :-

• It is not always possible to construct a triangle from a given side length and two angles.
• If the two given angles add to more than 180°, the sides of the triangle will diverge and never meet.

So, Option B is not a correct Statement.

Option C) :- Triangles also have AAA criterian congruency .

Explanation :-

• If the three angles are congruent between two triangles, that does NOT mean that the triangles have to be congruent .
• They are the same shape (and can be called similar), but we don't know anything about their size.
• So, both traingles with AAA criterian can be similiar but not congruent triangles.

So, Option C is not a correct Statement.