Question

in triangleABC,AE is perpendicular on BC and BD is perpendicular on AC . also AC=25 , BC=7, AE=20m​

Answer 1

Step-by-step explanation:

in triangleABC,AE is perpendicular on BC and BD is perpendicular on AC . also AC=25 , BC=7, AE=20m

so area of triangle

=1/2×AE×BC=1/2×BD×AC

=>20×7=BD×25

=>BD=140/25=28/5=5.6cm

Answer 2

Step-by-step explanation:

BC is the base and AE is the height of the triangle. Hence Area of triangle ABC is = 1/2 x height x base = 1/2 x 10 x 7 = 35 sq. cm.

DB is the altitude of triangle ABC. Base is AC = 25 cm. Hence height of triangle DB is given by 1/2 x height DB x base AC = 35 sq. cm

i.e. 1/2 x DB x 25 = 35 sq. cm.

25 DB = 70

DC = 70/25 = 2.8 cm.