Step 1: Understanding the Area of a Triangle and Rectangle.
The area of a triangle is given by: \[ \text{Area of triangle} = \frac{1}{2} \times \text{base} \times \text{height}. \] The area of a rectangle is: \[ \text{Area of rectangle} = \text{base} \times \text{height}. \] For the same base and height, the area of the triangle will be half the area of the rectangle. Therefore, the ratio is 1:2.
Step 2: Verifying the Options.
- Option (1): The correct ratio is 1:2.
- Option (2): 2:1 is incorrect.
- Option (3): 1:3 is incorrect.
- Option (4): 1:4 is incorrect.
Conclusion:
Therefore, the correct answer is (1) 1:2.
Find the number of triangles in the given figure.
Find the unknown frequency if 24 is the median of the following frequency distribution:
\[\begin{array}{|c|c|c|c|c|c|} \hline \text{Class-interval} & 0-10 & 10-20 & 20-30 & 30-40 & 40-50 \\ \hline \text{Frequency} & 5 & 25 & 25 & \text{$p$} & 7 \\ \hline \end{array}\]
Two concentric circles are of radii $8\ \text{cm}$ and $5\ \text{cm}$. Find the length of the chord of the larger circle which touches (is tangent to) the smaller circle.