Question

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Please tell me answers of these questions I will add your answers in brain list

Answer 1

hey mate!! Q2) option(2).105degree is correct
and Q3) option(2).Isosceles triangle is correct

Answer 2

Step-by-step explanation:

(1)

<ABC=<ABD+<BDE+<EDC

<ABD=45°

<BDE=180-90-60=30°

<EDC=60/2=30°

<ABC=45+30+30=105°

(2)

4x-12+6x+5x+12=180°

15x=180°

x=12°

So the angles are 36° 72° & 72°

So triangle is isosceles