A)
Two sides are 8 x 2 = 16 x 2 = 32 sq. in.
Two sides are 11 x 2 = 22 x 2 = 44 sq. in.
Top is 8 x 11 = 88 sq. in.
Total surface area: 32 + 44 + 88 = 164 square inches.
B) Area of a circle = PI x r^2
Area = 63.585
63.585 = PI x r^2
Using 3.14 for PI:
63.585 = 3.14 x r^2
Divide both sides by 3.14:
r^2 = 63.585 / 3.14
r^2 = 20.25
r = √20.25
radius = 4.5 inches.
C)
Diameter = radius x 2
Diameter = 4.5 x 2 = 9 inches.
In the hundreds spot is a 2 and 2 is under 5 so we round down which would be 4 398 200
First set up a proportion.
14/210 = x/27900
then divide 27900 by 210 which equals about 133
then multiply 14 by 133 which is 1862
your answer is 1862
Answer:
for part b the vertex is (2, 13)
Step-by-step explanation:
no (ice)
