Question

Plz help me with this geometry question

Answer 1

Explanation:

it's a square so

AB=BC=CD=DA

BC=15

AC=

`{ac}^(2) = {15}^(2) + {15}^(2) \\ ac = √(450) = 21.21 = 21.2`

ED = AC/2= 10.6

m<ABC= 90°

m<CED=90°

m<ADE=45°