1) Use the formula of rectangular prism: width x height x length
2) Use the formula of triangular prism: (Base x height x length) ÷ 2
3) Use the formula of cylinder: π x x height
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1)
width x height x length
= 5 x 9 x 23
= 1035
<h2>answer: 1035 cubic centimeters</h2>------------------------------------------------------------------------------------------------
2)
(Base x height x length) ÷ 2
= (5 x 4 x 20) ÷ 2
= 400 ÷ 2
= 200
<h2>answer: 200 cubic inches</h2>------------------------------------------------------------------------------------------------
3)
π x x height
= π x x 12
= π x 6.25 x 12
= 75π
= 236 (rounded to neareast whole number)
<h2>answer: 236 cubic meters</h2>For this case we must simplify the following expression:
We must add similar terms taking into account that:
Thus, the simplified expression is:
Answer: