Question

Complete the pairs of corresponding parts if ABD congruent to EFC.

angle B =



∠FCE
∠FEC
∠EFC

Answer 1

The correct option is 3.

Explanation:

Given information: ΔABD≅ΔEFC.

The corresponding sides and corresponding angles of congruent triangles are same.

In triangle ΔABD and ΔEFC,

`\angle A=\angle E`

`\angle B=\angle F`

It can be written as

`\angle B=\angle EFC=\angle CFE`

`\angle D=\angle C`

Angle B is equal to angle EFC, therefore the correct option is 3.

Answer 2

Remember the notation..

When you have a triangle called ABD, the angles may be called in theses equivalent ways>

angle A is equivalent to ∠ DAB
angle B is equivalent to ∠ ABD
angle D is equivalen to ∠ BDA

Then given that the two triangles are congruent, you can say an

angle B = angle F = ∠ EFC

So the answer is the last option of the list.