Question

From given figure, In ∆ ABC, AB⊥ BC, AB =BC then m A = ?

A

B C​

Answer 1

Answer:

AB=BC [Given]

ΔABC is an Isoceles triangle.

∠A≅∠C [Isoceles triangle theorem]

∴∠A=∠C=45°

ΔABC is a 45°-45°-90° triangle.

As we know,∫(AB)=\frac{1}{\sqrt 2}

2

1

× AC [Side opposite to 45° is half the hypotenuse]

∫(AB)=\frac{1}{\sqrt 2}

2

1

× 2√2

∴ ∫(AB) =2 .

Answer 2

Answer:

From given figure, In ∆ ABC, AB⊥ BC, AB =BC then m A = ?

Step-by-step explanation:

45 45 90