Question

Class 7 Congruence Of Triangle...
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Answer 1

Answer:

option A and D only

A)BA=CA

<ADB=<ADC=90°

DB=DC{altitude of isosceles∆ divides the base

equally

D)LN=PM

<LMN=<PNM =90°

NM=NM(common)

Step-by-step explanation:

hope it helps you...

Mark this as BRAINLIEST....

Answer 2

Congruent triangles =>

• When two triangles are congruent they will have exactly the same three sides and exactly the same three angles.

• The equal sides and angles may not be in the same position (if there is a turn or a flip), but they are there.

RHS congruence =>

• The test is therefore given the initials RHS for 'Right angle', 'Hypotenuse, 'Side'. RHS congruence test.

• 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.

congruent triangles using RHS congruence =>

(A) Δ ABD ≅ Δ ACD (given that one pair of side is equal , one side is common and angles are equal that is 90°)

(D) Δ LMN ≅ Δ PNM (one pair of side is given as equal , one side is common and both the corresponding angles are 90°)

non congruent triangles =>

(B) and (C) triangles are not congruent because their side measures differ...and 90° is not marked...

Answer =>  triangles in A and D  are congruent by RHS congruence rule...

hope it helps !!