Question

in ∆ABC,Angle C = angle A,BC=4cm and AC =5cm. Then,AB=?
a). 4cm
b). 5cm
c). 8cm
d). 25cm​

Answer 1

Answer:

option.,a) 4cm

Step-by-step explanation:

In ∆ABC , <A = <C ,

AC = 5 cm and BC = 4 cm .

Solution:

In ∆ABC, <A = <C

=> BC = AB = 4 cm

Therefore.,

Value of AB=4cm.

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Answer 2

Given :- In ∆ABC , Angle C = angle A, BC = 4cm and AC = 5cm.

To Find :- AB = ?

a). 4cm

b). 5cm

c). 8cm

d). 25cm

Concept used :-

• In a ∆ , sides opposite to equal angles are equal in measure .

Solution :-

In ∆ABC, given that,

→ ∠C = ∠A

So,

→ Side opposite to ∠C = Side opposite to ∠A

→ AB = BC

also given that, BC = 4 cm .

then,

→ AB = 4 cm (Ans.)

Hence, length of side AB is equal to (a) 4 cm .

Learn more :-

In the given figure PQ || RS || BC. If RS = 4 cm, PQ = 3 cm, then BC is equal to https://brainly.in/question/45600047

Which of these can never be the ratio of the sides of the triangle? a. 3:5:7 b. 3:5:3 C. 2:2:3 d. 2:5:8

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