Step-by-step explanation:
How are we supposed to find volume if you don't enter the other elements I.e width, length and height?
But just in case the formulae for finding volume is to multiply is elements. So to find volume multiply is width, length and height.
Answer:
You can either use substation or you can use elimination on both of the problems
Step-by-step explanation:
Given:
To prove:
Proof:
In 
,
because Given
because Given
because Reflexive property.
Corresponding sides of both triangles are congruent. So,
because SSS
Therefore, the required missing values are: Given, , Reflexive property ,, SSS respectively.
Tan(x)= sin(x)/cos(x), therefore, substitute sin(x)/cos(x) in the expression:
=(cos(x)(sin(x)/cos(x))-1)/cos^2(x)
simplify the 2 cos(x):
=(sin(x)-1)/cos^2(x)
Sin^2(x)+ cos^2(x)=1, sin^2(x)-1=- cos^2(x), substitute in the expression:
= -cos^2(x)/cos^2(x)= -1
