Answer: 81/2 inches squared or 40.5 inches squared
Step-by-step explanation:
The volume of a pyramid = bh/3
so V = bh/3
V = 108 and h = 8, so plug these in
108 = 8b/3
b = 108 *3/8
= 40.5 inches squared
or if you want a fraction, 81/2 inches squared
Answer:
144
Step-by-step explanation:
1+128+15
144
4a + 6b = 10
2a - 4b = 12...multiply by -2
----------------
4a + 6b = 10
-4a + 8b = - 24 (result of multiplying by -2)
------------------add
14b = - 14
b = -14/14
b = -1
2a - 4b = 12
2a - 4(-1) = 12
2a + 4 = 12
2a = 12 - 4
2a = 8
a = 8/2
a = 4
so 12a = 12(4) = 48 <==
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102 bc a triangle adds up to 180
