The base-10 integers 36, 64, and 81 can be converted into other bases so that their values are represented by the same digits △□□, where △ and □ are two distinct digits from 0-9. What is the value of △□□?

100

Step-by-step explanation:

The  base 10 Integers 36, 64, and 81 can be converted into base 6, 8 and 9 respectively.

36₆ = 100 (1)

64₈ = 100(2)

81₉ = 100(3)

From  1 to 3, it is clear that the two distinct numbers are 1 & 0,

△ = 1

□ = 0

△□□ = 100

your answer is 228

step-by-step explanation:

add the top and bottom bases together, then divide them by 2, then multiply by the height.