Question

In right-angled triangle ABC; ∠B=900. Find the magnitude of angle A, if :

i) AB is 3 times of BC.

ii) BC is 3 times of AB.​

Answer 1

Step-by-step explanation:

in right angled triangle b= 900

Ab three times of bc= b=900

bc three times of ab a value 1

b value 1 timea bigger.

Answer 2

Answer:

45⁰ is the answer.

Step-by-step explanation:

from ¡ & ¡¡ .. AB= BC

so LA= LC

so LA + LB + LC = 180⁰ ( Angle sum property of a triangle )

LA+90⁰+ LA = 180⁰

2LA + 90⁰ = 180⁰

2LA= 180⁰-90⁰

2LA= 90⁰

LA=90⁰/2

LA = 45⁰

Hopefully this will help you!! : ))