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 sine value of an angle in standard position that has a reference angle of 30 degrees?
+
What is the value of the tangent of an angle in a right triangle with opposite side length of 3 and adjacent side length of 4?
+
Question: What is the variance of the numbers 2, 4, 6, 8, and 10?