Provide the missing reasons for the proof given < c < e prove: ∆abc ~dbe

For two triangles to be similar.

The ratio of their sides must be in proportion.(SSS)

Any two angles of one triangle must be equal to two angles of another triangle. (AA)

Ratio of two sides must be in proportion and the included angles must be congruent.

Here in the figure it is given that

<C = <E

Also

<ABC = <DBE as they are vertical angles.

So by AA

ΔABC ~ ΔDBE.

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm