Question

ABC and ADC are two equilateral triangles on a common base AC Find the angles of the resulting quadrilateral. show it as a rhombus.

Answer 1

Answer:

• angles are 60°,60°,120° and 120°

Step-by-step explanation:

since

they are equilateral Δs and have common base AC,

they are congruent Δs.

i.e., they have equal sides. so, it can either be square or rhombus.

again since it is not a right angled triangle so it does not have right angles.

∴ it is a rhombus.

hence proved