I)
Find the first term of a G. P. whose fifth term is 243 and the
common ratio 3.

first term = 3

Step-by-step explanation:

The n th term of a GP is

= a₁

where a₁ is the first term and r the common ratio

Here r = 3 and a₅ = 243 , thus

a₁ × = 243

a₁ × 81 = 243 ( divide both sides by 81 )

a₁ = 3

30

step-by-step explanation:

idk

i hope i

sas (side angle side)

aa(angle angle)

sss(side side side)

sas you have to find two sides with an angle in between

aa you find two angles because it will always add up to 180

sss find all sides

step-by-step explanation: