Sahil is using a map to estimate the area of California. He thinks the state could best be outlined by an irregular octagon. He draws the polygon shown to approximate its shape. 1.) What do you think Sahil’s approach to estimating the area of California? Would you do anything Different?

2.) Estimate the part of California’s border that is coastline (show your work).

3.) Estimate the Length of California’s boarder. (Show your work).

4.) Estimate the percent of California’s boarder that is coastline. (Show your work).

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

sas (side angle side)

aa (angle angle)

sss(side side side)

sas find two sides with an angle in between

aa is finding two angles and the third will add up to 180

sss find all sides

step-by-step explanation:

s

step-by-step explanation:

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.