Answer:
First and second. 24:21, 32:28
Step-by-step explanation:
Just do it. Hope I helped you!;)
1. S.S.A
2.S.A.A
3. That looks like the same question as two I can't quite see it.
Question a:
Mass = Density × Volume
Density = Mass/Volume
Volume of the tree trunk (the shape of Cylinder) = Area of circular base × height
Volume = [πr²] × h
Volume = [π × 0.25²] × 20
Volume = 3.93 m³
Density = 380 kg/m³
Mass = Density × Volume
Mass = 380 × 3.93
Mass = 1493.4 kg
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Question b)
The growth ring = 4 millimeters = 4÷1000 = 0.004
New diameter = 0.5 + 0.004 = 0.5004
New height = 20 + 0.2 = 20.2
New volume = [πr²] × h
New volume = [π × 0.2502²] × 20.2
New volume = 3.97 m³
Answer:
The volume of the cylinder is 792
Step-by-step explanation:
3.14*6^2*7= 791.68 then when you round it up to the nearest whole number it's 792
