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bonufazy [111]
3 years ago
11

If x = 11 units and h = 7 units, then what is the area of the triangle shown?

Mathematics
2 answers:
m_a_m_a [10]3 years ago
3 0
The answer is A because of base times height
STatiana [176]3 years ago
3 0

Answer:

38.5

Step-by-step explanation:

x÷2= 5.5

5.5×7= 38.5

answer: 38.5

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Use formulas to find the lateral area and surface area of the given prism. Round your answer to the nearest whole number.
tankabanditka [31]

Answer:

lateral area ≈ 668  m²

surface area ≈ 740 m²

Step-by-step explanation:

The lateral area of a triangular prism = perimeter of the base × height of the prism

lateral area = ph

where

p = perimeter of the base

h = height or altitude

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lateral area = ph

lateral area = (8 + 9 + 12.04) × 23

lateral area = 29.04 × 23

lateral area = 667.92  m²

lateral area ≈ 668 m²

Surface area

surface area = lateral area + 2B

where

B = area of it triangular bases

surface area = lateral area + 2B

surface area = 667.92   + 2(1/2 × base × height)

surface area = 667.92  + 2(1/2 × 8 × 9)

surface area = 667.92  + 2(1/2 × 72)

surface area = 667.92  + 2(36)

surface area = 667.92  + 72

surface area = 739.92  

surface area ≈ 740 m²

8 0
3 years ago
A Number m plus 4 is greater than or equal to seven
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