Question

The diagonals AC and BD of a quadrilateral ABCD in the figure intersect at right angles, AD =AB and DC = BC. If ∟DAC = 30° and ∟DBC = 20°, find the measure of each of the angles marked a, b, c, d and e

pls send the correct ans pls ​

Answer 1

Answer:

In given figure,

Quadrilateral ABCD is a parallelogram.

So, AD ∣∣ BC

∴ ∠DAC = ∠ACB --- ( Alternate angle)

∴ ∠ACB = 32

∘

∠AOB + ∠BOC = 180

∘

--- (straight angle)

⇒70

∘

+ ∠BOC = 180

∘

∴ ∠BOC = 110

∘

In △BOC,

∠OBC + ∠BOC + ∠OCB = 180

∘

⇒∠OBC + 110

∘

+ 32

∘

= 180

∘

⇒ ∠OBC = 38

∘

∴ ∠DBC = 38

∘

Answer 2

Answer:

yes the above answer is correct follow hee