Question

. It is given that ∆ ≅ ∆ and ∠ = 40°

,∠A= 80° and AB = 6cm. Find the length of

DF and measure of ∠E of ∆DEF.​

Answer 1

Answer:

For triangle to be congruent SAS(Side angle Side) axiom we need to have two equal sides and the included angle same.

For triangle to be congruent SAS(Side angle Side) axiom we need to have two equal sides and the included angle same.In ΔABC and ΔDFE

For triangle to be congruent SAS(Side angle Side) axiom we need to have two equal sides and the included angle same.In ΔABC and ΔDFEWe have AB=DF

For triangle to be congruent SAS(Side angle Side) axiom we need to have two equal sides and the included angle same.In ΔABC and ΔDFEWe have AB=DF and ∠A=∠D

For triangle to be congruent SAS(Side angle Side) axiom we need to have two equal sides and the included angle same.In ΔABC and ΔDFEWe have AB=DF and ∠A=∠DBut ∠A is formed by the two sides AB and AC of ΔABC

For triangle to be congruent SAS(Side angle Side) axiom we need to have two equal sides and the included angle same.In ΔABC and ΔDFEWe have AB=DF and ∠A=∠DBut ∠A is formed by the two sides AB and AC of ΔABCBut ∠D is formed by the two sides DE and DF of ΔDFE

For triangle to be congruent SAS(Side angle Side) axiom we need to have two equal sides and the included angle same.In ΔABC and ΔDFEWe have AB=DF and ∠A=∠DBut ∠A is formed by the two sides AB and AC of ΔABCBut ∠D is formed by the two sides DE and DF of ΔDFESo we need AC=DE for the two triangles to be congruent.