Answer:
SA of black base: 84 cm^2
SA of blue faces: 84 cm^2
SA of gold faces: 60.2 cm^2
SA of 1 ornament: 228.2 cm^2
SA of 100 ornaments: 22,820 cm^2
Step-by-step explanation:
SA of black base:
A = lw
A = 7(12)
A = 84 cm^2
SA of blue faces:
A = bh
(don't divide by 2 since there are 2 triangles)
A = 12(7)
A = 84 cm^2
SA of gold faces:
A = 7(8.6)
(don't divide by 2 since there are 2 triangles)
A = 60.2 cm^2
SA of 1 ornament:
Add #s in bold:
84 + 84 + 60.2 = 228.2 cm^2
SA of 100 ornaments:
Multiply SA of 1 ornament by 100:
228.2(100) = 22,820 cm^2
Answer:
E. 50%
Step-by-step explanation:
The shaded regions in the bottom can be 'moved' to the top since those pieces are the same size and if you do that, they cover the entire top half
Problem: In chess, Justin won 20 games, tied 8 games, and lost 14 games last year. What is Justin’s ratio of total games to tied gamesSolutions:=> There are a total of 20 games=> 8 of them were tied=> 14 games were lost.Now, let's find the ratio of the tied games to the total games.=> Since the total game is 20 and the tied games are 8, therefore the ratio will be:<span>=> 8 : 20, where 8 are the tied games and 20 is the total</span>
