3.(a) A cylindrical tank for storing oil has a capacity of 1078 cm. If its height and radius are equal, calculate
the depth of oil in the tank when full (Take p = 22/7)
(b) Find the perimeter of a rectangular field which is
10 m by 5 m.

∠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.

d

step-by-step explanation:

i think it would be 42cm