Question

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Answer 1

A) H = 18 - 1 = 6

Explanation:

B) Since the fixed size of this triangle is 18, we just next to find how much space is left for h. So as the equation above states, h = 18 - 1 - 6

Simplify that to 18-7

18 - 7 = 11

h = 11

Answer 2

h=5

Explanation:

18x2 = 36

36/6 = 6

6 = h+1

h=5

Check:

5+1 = 6

6x6 = 36

36/2 = 18