6 feet * 7 feet = 42 feet²
18 feet * 21 feet = 378 feet²
42 feet² was painted for $52
1 feet² will be painted for $52/42
378 feet² will then be painted for: ($52/42) * 378
= $468
Hence 18 feet by 21 feet will be painted for $468
Hope this helps.
Answer:
send the question
Step-by-step explanation:
Answer:
26cm^2
Step-by-step explanation:
To calculate area of a triangle we multiply height with base and that divided by two
13 × 4 ÷ 2 = 26cm^2
Answer:
10 units
Step-by-step explanation:
Because the center of the circle is at (9 , 9) and passes through (4 , 9), <u>the radius must be 5.</u>
<em>Radius</em> - The length from the center of a circle to its edge
<em>Diameter</em> - The length from one edge of a circle to the opposite edge
The diameter is double the length of the radius, meaning D = 2(5).
2 × 5 = 10
So, the diameter of the circle is 10 units.
