पुढीलपैकी प्रत्येक घटकातील चुकीची जोडी ओळखून पुन्हा लिहा :
विचारवंत — देश
(i) कार्ल मार्क्स — इंग्लंड
(ii) मायकेल फुको — फ्रान्स
(iii) लिओपॉल्ड व्हॉन रांके — जर्मनी
(iv) हेरोडोटस — ग्रीस
Match the legendary Indian musicians in Column A with the musical instruments they are famously associated with in Column B. 
Match the temple architectural terms in Column A with their descriptions in Column B. 

In the following figure \(\triangle\) ABC, B-D-C and BD = 7, BC = 20, then find \(\frac{A(\triangle ABD)}{A(\triangle ABC)}\). 
The radius of a circle with centre 'P' is 10 cm. If chord AB of the circle subtends a right angle at P, find area of minor sector by using the following activity. (\(\pi = 3.14\)) 
Activity :
r = 10 cm, \(\theta\) = 90\(^\circ\), \(\pi\) = 3.14.
A(P-AXB) = \(\frac{\theta}{360} \times \boxed{\phantom{\pi r^2}}\) = \(\frac{\boxed{\phantom{90}}}{360} \times 3.14 \times 10^2\) = \(\frac{1}{4} \times \boxed{\phantom{314}}\) <br>
A(P-AXB) = \(\boxed{\phantom{78.5}}\) sq. cm.