न जम्मा रकम कति होला ? How much amount will Anish receive from the bank after 1 year? Ans: (a) Nepal Rastra Bank, (b) Rs 20,89,800, (c) Rs 23,48,04 वर्गाकार आधार भएको एउटा पिरामिडको त्रिभुजाकार सतहको क्षेत्रफल 540 cm छ । यदि उक्त पिरामिडको छड्के उचाइ 15 cm छ भने, The lateral surface area of a square based pyramid is 540 cm² and its slant height is 15 cm. (३) पिरामिडको पूरा सतहको क्षेत्रफल पत्ता लगाउने सूत्र लेख्नुहोस्। (Write the formula to find out the total surface area of a pyramid.)
