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Eduardwww [97]
3 years ago
9

HI! Need help desperately! The area of a triangle sign is 81 ft^2. If the base of the sign is 18 feet, what is the height of the

sign?
Mathematics
2 answers:
andriy [413]3 years ago
7 0

Area of a triangle: 1/2 base x height

81 ft^2 = 1/2 (18 feet) (height)

Solve for x

81 / (1/2 x 18) = 9 feet for height

Please brainliest me if this helped; trying to level up!

elena-s [515]3 years ago
7 0

It should be 9 for the height

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4 years ago
Heelp me im struggling
olga nikolaevna [1]

Answer:

b. -30

Step-by-step explanation:

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4 years ago
Please i need help with the answers this is due later on today
Nutka1998 [239]

Answer:

384, 216, 290, 192, 384

1446, 1 roll

Step-by-step explanation:

For rectangular boxes, calculate the sum of each side, then multiply it by two.

Box 1: 2(18 x 5) + 2(18 x 4) + 2(5 x 4) = 364

Box 3: 2(11 x 8) + 2(8 x 3) + 2(3 x 11) = 290

Box 5 is a cube (all sides equal), so you can find 1 side's area and multiply it by 6.

Box 5: 6(8 x 8) = 384

For triangular boxes, calculate the edges, then find the triangular area using area = 0.5(base x height).

Box 2: (15 x 3) + (9 x 3) + (12 x 3) + 2(0.5)(9 x 12) = 216

Box 4: 2(13 x 2) + (10 x 2) + 2(0.5)(10 x 12) = 192

Total: 364 + 290 + 384 + 216 + 192 = 1446

Rolls of wrapping paper:

Area of 1 roll = 30 x 60 = 1800

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8 0
3 years ago
Read 2 more answers
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