Question

If ΔABC~ΔDEF , what is the value of x? D=40° E=80° B= (4x+20)°

Answer 1

$\huge{\boxed{\mathbb\blue{\fcolorbox{red}{purple}{x=15°}}}}$

Answer 2

Answer:15°

We have ∠A=∠D, ∠B=∠E, ∠C=∠F

Also ∠D=40°, ∠E=80°, ∠B=(4x+20)°

∠B=80°, ∠B=(4x+20)°

4x+20°=80°

4x=60°

x=15°