Используйте формулу, написанную ниже, чтобы найти площадь данного треугольника.
A=\frac{1}{2}ab\sin\theta
Как указано,
a=12,\:b=5,\:\theta=60^{\circ}
Поэтому,
A=\frac{1}{2}\times12\times5\times\sin60^{\circ}, A\около 25,98 см^2
Frequently asked questions (FAQs)
What is the sum of the first 10 terms of an arithmetic sequence, where the first term is 3 and the common difference is 2?
+
Math question: Find the component form of the unit vector resulting from the vector sum of ⟨3, -2⟩ and ⟨-1, 4⟩.
+
What is the equation of an exponential function that passes through the point (2, 8) and has a horizontal asymptote at y = 4?