Manipulate the symbol and find the
missing number.
4Δ3 = 21
7Δ5 = 36
6Δ2 = 24
8Δ9 =?
(1) 36
(2) 34
(3) 48
(4) 51
Explanation please
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Answer:
add 8+9
then we have three vertex in a triangle
so 8+9=17×3=51
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