Cecilia simplified an expression. Her work is shown below. (6 and one-half + 2 and three-fourths) minus 1.5 times (4.5 divided by 0.5) Step 1 9 and one-fourth minus 1.5 times (4.5 divided by 0.5) Step 2 7.75 times (4.5 divided by 0.5) Step 3 7.75 times 9 Step 4 69.75 Where did Cecilia make her first mistake?

∠lno ≅ ∠lnm

∠oln ≅ ∠mln

step-by-step explanation:

given   that triangle lno is congruent to triangle lnm.

we have to fill up the blanks in the given question.

according to above order of congruency   kept in mind we can say that

∠lno ≅ ∠lnm

∠oln ≅ ∠mln

ln ≅ ln due to common in both.

hence, by sas congruency,

the side angle side rule   states that if two sides and the included angle of one triangle are congruent to another triangle, then these two triangles are congruent.

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are