Question

It is given that triangle ABC ~= triangle FDE and AB= 5 cm angle b= 40 degrees and angle A= 80 degrees

Answer 1

Correct Question :

it is given that triangle ABC congruent it triangle FDE and AB = 5cm , angle B is 40° and angle A is 80°.Then find the value of angle E

Given:

• It is given that triangle ABC congruent it triangle FDE and AB = 5cm , angle B is 40°40 and angle A is 80°80

To find:

• find the value of angle E

Solution:

In a triangle abc, sum of angles of a triangle = 180°

$:\implies \tt\angle A + \angle B + \angle C∠A+∠B+∠C = 180 \degree$

$:\implies \tt80 + 40 + \angle C∠C = 180$

$:\implies\tt\angle C = 60^\circ∠C=60$

Since the triangles are congruent ABC = FDE

$</p><p> :\implies\tt\angle C = \angle E.∠C=∠E.</p><p>$

So, the angle of C is equal to E.

Result:

The angle of E is 60° 60

Answer 2

Correct Question :

it is given that triangle ABC congruent it triangle FDE and AB = 5cm , angle B is 40° and angle A is 80°.Then find the value of angle E

☆ Given:

It is given that triangle ABC congruent it triangle FDE and AB = 5cm , angle B is 40 and angle A is 80°

◇ To find:

find the value of angle E

➡️ Solution:

In a triangle abc, sum of angles of a triangle = 180°

Angle A + Angle B + Angle C = 180°

80° + 40° + Angle C = 180°

Angle C = 180° - 120° = 60°

Since the triangles are congruent ABC = FDE

So, Angle A = Angle F

Angle B = Angle D

Angle C = Angle E

The angle of E is 60° .