Answer:
7
Step-by-step explanation:
Answer:
V=6280cm²
Step-by-step explanation:
V=pi r²h
V=3.14 x 10²cm×20cm
V=6280cm²
<span>Inside a house as 78.4°F
Outside in the sun measured the temperature as 92.9°F
The </span>difference = 92.9°F - 78.4°F = 14.5°F
Answer
<span>A.
Yes, it is reasonable because 92.9 – 78.4 = 14.5.</span>
Length = l
width = 1/3 of length = l/3
perimeter = 2(l + l/3)
Answer is option B
-----------------------------------
2(l+ l/3) = 56
⇒ 8l/3 = 56
⇒ l = 3*56/8
⇒ l = 21 inch
width = 21/3 = 7inch
Area = 21*7 inch² = <span>147 inch²</span>