Answer:
Step-by-step explanation:
<h2>Cone:</h2>
diameter = 12 cm
r = 12 ÷ 2 = 6 cm
h = 6 cm
To find the surface area, we need to find the slant 'l'
= 3.14 * 6 * (6 + 8.49)
= 3.14 * 6 * 14.49
= 273 cm²
Answer:
$13.80
Step-by-step explanation:
You would subtract 1.60 from 29.20 to get 27.60. Then you would divide by two because there were two CDs and get $13.80
Answer:
55 sq meters
Step-by-step explanation:
Area of big triangle 7x5=35/2
but there's two big triangle so 35/2 x 2 =35
area of small triangle 5x4=20/2 10
10 x 2 =20. And then combine 20+35=55
So the area is 55 sq meters.
Area of a triangle = (height * base ) / 2
height = (Area * 2) / base
height = (49.5 * 2) / 9
height = 99 / 9
height = 10 cm²
