Step 1: Understanding Colour Mixing.
When yellow and red, two primary colours, are mixed together, they form orange, a secondary colour. This is a basic principle of subtractive colour mixing, where the combination of these two primary colours produces a new colour.
Step 2: Verifying the Options.
- Option (1): Yellow mixed with red forms orange, making this the correct answer.
- Option (2): Brown is not produced by mixing yellow and red; it typically requires a combination of red, blue, and yellow.
- Option (3): Paddy green is a mix of blue and yellow, not yellow and red.
- Option (4): Sky blue is a shade of blue, not produced by mixing yellow and red.
Conclusion:
Therefore, the correct answer is (1) Orange.
$PQ$ is a chord of length $4\ \text{cm}$ of a circle of radius $2.5\ \text{cm}$. The tangents at $P$ and $Q$ intersect at a point $T$. Find the length of $TP$.