Question

Math question:
Prove that the volume of this geometrical object is 1.86 kilolitres!

Answer 1

Answer:

:

Prove that the volume of this geometrical object is 1.86 kilolitres

ans - if we take open place as x so x ÷84_2 you will get your answer

Step-by-step explanation:

please mark brainliest

Answer 2

Formula to be used,

a/sin A=b/sin B=c/sin C, A+B+C =180, sin (180-A) = sin A,

sin (90-A) = cos A, cos (90-A) = sin A,

sin A+sin B = sin (A+B)/2*cos(A-B)/2, sin A-sin B = sin (A-B)/2*cos(A+B)/2

(a-b)/c =(sin A-sin B)/sin C =(sin A-sin B)/sin(A+B) as C =180-(A+B)

(a-b)/c =2sin [(A-B)/2]*cos[(A+B)/2]/2/sin [(A+B)/2]*cos[(A+B)/2]

=sin [(A-B)/2]/sin [(A+B)/2]=sin [(A-B)/2]/sin (90-C/2)=sin [(A-B)/2]/cos(C/2)

Similarly,

a/(b+c)=sin A/(sin B+sin C)=sin (B+C)/(sin B+sin C)=

2sin [(C+B)/2]*cos[(C+B)/2]/2/sin[(B+C)/2]/cos[(B-C)/2]

=cos[(C+B)/2]/cos[(B-C)/2]=sin (A/2)/cos[(B-C)/2]