Mathematics · Geometry
In a quadrilateral ABCD, AB = 0.3 m, BC = 0.4 m, and ∠ABC = 90°. If AD = DC = 0.4 m and the remaining angles are not right angles, what is the area of quadrilateral ABCD (in cm2, rounded off to the nearest integer)?
- 11323
- 21318
- 31380
- 41381✓
Correct answer
1381
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