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4 years ago

Please help 100 points.

Mathematics

2 answers:

IceJOKER [234]4 years ago

7 0

Answer:

76 square feet

Step-by-step explanation:

surface area = 2(wl + hl + hw) w=width h=height l=length

surface area = 2(5*4 + 2*4 + 2*5)

surface area = 2(20 + 8 + 10)

surface area = 2(38)

surface area = 76 square feet

34kurt4 years ago

4 0

Answer:

Step-by-step explanation:

A=2

(width x length+height x length +height x width)

=2·(4·5+2·5+2·4)=76ft^2

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3 years ago

Read 2 more answers

The lengths of the sides of a triangle are 3, 4, 5. Can the triangle be a right triangle?

Contact [7]

Answer:

Yes it can

Step-by-step explanation:

To check wether it's a right angle triangle we need to apply the Pythagoras theorem

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Answer from Gauthmath

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3 years ago

Prove that the following four points will form a rectangle when connected in order

Lemur [1.5K]

Answer:

Step-by-step explanation:

If the diagonals of the rectangle are congruent,

AC = BD

By using formula to calculate the distance between two points,

Distance between two points = $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Distance between A(0, -3) and C(2, 8),

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= $\sqrt{125}$

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8 0

3 years ago

Which is bigger? 30% or 1/3?

aalyn [17]

Convert them to comparable thingummys

convert to fraction

percent means parts out of 100
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3/10 vvs 1/3
make bottom number 30

3/10 times 3/3=9/30

1/3 times 10/10=10/30
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4 years ago

An inverse trigonometric function is used to find the value of an unknown obtuse angle in a triangle. The inverse function retur

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So the unknown angle is

$180-68=112 degree$

And that's the required answer .

4 0

3 years ago

Please help 100 points.​

Please help 100 points.