Question

HELP HELP HELP!!!!!!!!

Answer 1

53

Explanation:

Answer 2

• In any rhombus diagonals bisect each other at 90°.

in ∆DEC

`\\ \tt\longmapsto DC^2=8^2+6^2=10^2`

`\\ \tt\longmapsto DC=10`

• AD=10

m<DAX be x

`\\ \tt\longmapsto sinx=(DE)/(AD)`

`\\ \tt\longmapsto sinx=(8)/(10)`

`\\ \tt\longmapsto sinx=(4)/(5)`

`\\ \tt\longmapsto x\approx 53°`