Question

Find the area of DABC having ÐB = 90°, AC = 13 cm and BC = 12 cm. ​

Answer 1

Answer:

90°+13°+12°+x°=360

232°+x°=360

x°=128

Step-by-step explanation:

I hope it help for you

Answer 2

Answer:

sum of ABCD= 360•

A+B+C+D=360•

90•+13+12•+x•=360•

232•+x•=360•

x•=360•-232•

x=128•

hope it is helpful to YoU