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3 years ago

Use the diagram of ◾ABC to find m<DM<D=

Mathematics

1 answer:

Yuliya22 [10]3 years ago

7 0

Answer:

In quadrilateral ABCD we have

AC = AD

and AB being the bisector of ∠A.

Now, in ΔABC and ΔABD,

AC = AD

[Given]

AB = AB

[Common]

∠CAB = ∠DAB [∴ AB bisects ∠CAD]

∴ Using SAS criteria, we have

ΔABC ≌ ΔABD.

∴ Corresponding parts of congruent triangles (c.p.c.t) are equal.

∴ BC = BD.

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3 years ago

Use the diagram of ◾ABC to find m<DM<D=​

Use the diagram of ◾ABC to find m<DM<D=