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 length of the hypotenuse of a right triangle if the lengths of the two legs are 5 and 12?
+
What is 25,000,000 written in scientific notation?
+
What is the equation of the line passing through the points (2,4) and (5,9)?