Fill the following pyramids : Class 8
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Expert Answer
Fill the following pyramids : Class 8
Question 1.
Fill the following pyramids : Class 8
Solution:
Question 2.
Without building the entire pyramid, find the number in the topmost row given the bottom row in each of these cases. Class 8
Solution:
(i) 4 + 2 × 13 + 8 = 4 + 26 + 8 = 38.
(ii) 7 + 2 × 11 + 3 = 7 +22 + 3 = 32.
(iii) 10 + 2 × 14 + 25 = 10 + 28 + 25 = 63
Question 3.
Write an expression for the topmost row of a pyramid with 4 rows in terms of the values in the bottom row. Class 8
Solution:
Number will be : a + 3b + 3c + d.