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📰 Solution: First, compute the area of the triangle using Heron's formula. The semi-perimeter $ s = \frac{10 + 13 + 15}{2} = 19 $ km. The area $ A = \sqrt{19(19-10)(19-13)(19-15)} = \sqrt{19 \cdot 9 \cdot 6 \cdot 4} = \sqrt{4104} = 64.07 $ km² (approximate). The shortest altitude corresponds to the longest side (15 km). Using $ A = \frac{1}{2} \cdot \text{base} \cdot \text{height} $, the altitude $ h = \frac{2A}{15} = \frac{2 \cdot 64.07}{15} \approx 8.54 $ km. For exact value, simplify $ \sqrt{4104} = \sqrt{4 \cdot 1026} = 2\sqrt{1026} $, but numerical approximation suffices here. Thus, the shortest altitude is $ \boxed{8.54} $ km. 📰 Question: A renewable energy microgrid uses a hemispherical solar reflector with radius $ 2x $ and a cylindrical battery storage tank with radius $ x $ and height $ 4x $. What is the ratio of the hemisphere's volume to the cylinder's volume? 📰 Solution: The volume of a hemisphere is $ \frac{2}{3}\pi r^3 = \frac{2}{3}\pi (2x)^3 = \frac{16}{3}\pi x^3 $. The cylinder's volume is $ \pi r^2 h = \pi x^2 \cdot 4x = 4\pi x^3 $. The ratio is $ \frac{\frac{16}{3}\pi x^3}{4\pi x^3} = \frac{16}{3} \div 4 = \frac{4}{3} $. Thus, the ratio is $ \boxed{\dfrac{4}{3}} $. 📰 Cayman Islands Earthquake 472683 📰 David Tennant Wife 4870174 📰 This Viral Drops Copy Explosively Changed Brandingdont Miss The Hidden Details 5748934 📰 China Masters Badminton 7752536 📰 Aquamarine Necklace 8424187 📰 Things To Do In Santa Rosa Beach Fl 3056514 📰 You Wont Believe 3 Easy Ways To Change Your Computer Password Click Now 7398978 📰 Wells Fargo Bank Red Wing Minnesota 833247 📰 Why Investors Are Obsessed With Aes Stock Breaking Breakthrough Momentum 1112977 📰 You Wont Remember Appleton Rumuntil This Smells Exactly Right 8497187 📰 Baseball Big 10 Tournament 9459126 📰 Hurricane Express 2280544 📰 Topup Robux 66016 📰 The Shocking Place Where Actually Watching The Masters Happenswatch Now 5828852 📰 Vegan Protein 1751178