The triangle ADE
BC is parallel to DE
AB = 9cm, AC = 6cm, BD = 3cm, BC = 9cm

a) DE is 12 cm

b) CE is 2 cm

Step-by-step explanation:

In the two triangles and .

is common.

BC || DE

two parallel lines BC and DE are cut by BD and CE respectively and the angles are corresponding angles.

All three angles are equal hence, the triangles:

.

Ratio of corresponding sides of two similar triangles are always equal.

So, the answers are:

a) DE is 12 cm

b) CE is 2 cm

nothjing

step-by-step explanation:

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.