Question

Please solve these two questions

Answer 1

Answer:

prove bd =ca

Step-by-step explanation:

Given,

AD = BC

BD = CA

To Prove- ∠ADB = ∠BCA and ∠DAB = ∠CBA.

Proof- Let us take ∆ADB and ∆BCA into consideration .

AD = BC (Given)

BD = AC (Given)

AB = AB (Common side)

∴∆ADB ≅ ∆BCA by SSS

SSS(side-side-side) congruence states that if two triangles have all the three sides equal they are congruent.

Now , Applying CPCT( Corresponding parts of congruent triangles) which states that, If two triangles are congruent then their corresponding sides are equal , also corresponding angles too.

∠ADB = ∠BCA

Similarly , ∠DAB = ∠CBA

Hence proved.

Answer 2

Answer:

I.diagonals of a parallelogram gram is

equal .

II. Given two side equal then angle A= Angle D(alternate angle )

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