17. Area of triangle: 1/2bh
1/2 * 12 * 15
1/2 * 180
=90 cm^2
18. Area of trapezoid: 1/2 h (b1 + b2)
1/2 * 8 ( 12 + 15.4)
4 * 27.4
= 109.6 cm^2
Answer:
The Third one.
Step-by-step explanation:
So, Turn the mixed number, 2 1/4, to an improper fraction, 9/4. Then match the answer!
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Answer:
the plan costs $360+48= $408 compare two prices since I dont know the other price :(
Step-by-step explanation:
12x30+48=?
Answer: NEED PICTURE TO ANSWER, we dont know if it a square or if its a rectangle, sry
Step-by-step explanation: