Question

if abcd is a square and the area covered by the blue equilateral​

Answer 1

Step-by-step explanation:

C

15

0

Given, ABCD is a square. DCE is an equilateral triangle.

ABCD is a square,

AB=BC=CD=DA

DCE is an equilateral triangle,

DC=DC=CE

Hence, AB=BC=CD=DA=CE=DC

Now, In △ADE,

AD=DE

Thus, ∠AED=∠DAE=x

∠ADE=∠ADC+∠EDC

∠ADE=90+60

∠ADE=150

∘

Sum of angles of triangle ADE = 180

∠ADE+∠AED+∠DAE=180

150+x+x=180

x=15

∘

Hence, ∠DAE=15

∘

Answer 2

Answer:

ABCD is a square, and the area covered by the blue equilateral triangle is 49√3 cm2, what will be the area covered by the yellow region (in cm2)?