Challenge Tim paints ornaments for a school The surface area of one ornament is about play. Each ornament is as shown and is made up
in.
of two identical cones. He uses one bottle of paint (Do not round until the final answer. Then round to one
to paint 222 in. 2. How many bottles of paint does
decimal place as needed.)
he need in order to paint 60 ornaments? Use 3.14
for r.
&
9.6 in.
2.7 in
(The figure is not drawn to scale.)

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)

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:

7/2

(decimal: 3.5)

welcome ; )

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92