A 4 foot steel pipe weighs 15 pounds. How much will a similar pipe weigh if it is 7 feet long?

Step-by-step explanation:

Let's take the unit ratio of weight to length:

Now that we have the unit ratio, let's multiply it to the similar pipe which is 7 feet long.

∠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.

the answer is 489

step-by-step explanation: