Last updated at March 6, 2026 by Teachoo
Transcript
Question 2 - Page 138 How do we fill this pyramid?Let’s put the unknown values as variables a, b, c So, our pyramid becomes So, our equations are now 1 + a = 4 Solving a = 4 – 1 a = 3 And, a + b = c Putting values 3 + b = c And, finally 4 + c = 10 Solving c = 10 – 4 c = 6 Putting c = 6 in (1) 3 + b = c 3 + b = 6 b = 6 – 3 b = 3 So, our pyramid becomes