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2 years ago

Please answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

Oksi-84 [34.3K]2 years ago

8 0

Answer:

Step-by-step explanation:

miss Akunina [59]2 years ago

7 0

Answer:

Step-by-step explanation:

First, we need to find the area of the rectangle that the triangle RST is in, which would be 4*5=20. Second, we need to subtract the three triangles so the remaining area would be the area of the triangle that we need to solve for. The sum of the areas of the three triangles would be: 1/2*2*5 + 1/2*2*2 + 1/2*4*3 = 5 + 2 + 6 = 13.

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The diagonals of a rectangle enclose an angle of measure 78 degree

katrin2010 [14]

The area of the rectangle with a perimeter of 36 cm is determined as: 80.1 cm².

<h3>What is the Area of a Rectangle?</h3>

Area of a rectangle = (length)(width).

<h3>Given the following:</h3>

Angle of measure 78 degree enclosed by the diagonals of the rectangle

Perimeter = 36 cm

To find the area, we need to find the length and width of the rectangle using the trigonometric ratios.

A side of the rectangle = x cm

The other side = (36 - 2x)/2 = (18 - x) cm

Angle of the diagonal base = (180 - 78)/2 = 51°

Apply the tangent ratio to find x:

Tangent ratio is tan ∅ = opposite/adjacent side of a right triangle. We have the following,

∅ = 51°

Opposite side = x cm

Adjacent side = (18 - x) cm

Tan 51° = x/(18 - x)

1.235 = x/(18 - x)

1.235(18 - x) = x

22.23 - 1.235x = x

22.23 = x + 1.235x

22.23 = 2.235x

22.23/2.235 = 2.235x/2.235

x = 9.946 cm (one side length)

The other side length = 18 - x = 18 - 9.946 = 8.054 cm

Area of the rectangle = (9.946)(8.054)

Area of the rectangle = 80.1 cm²

Learn more about the area of rectangle on:

brainly.com/question/25292087

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3 0

1 year ago

Integers with different values in each digit can be expanded in a similar way. For these integers, you must use addition between

Bond [772]

Seriously nobody knows the anwser?? Im done ill just fail

5 0

2 years ago

Read 2 more answers

What is 61 divided by 207.4

romanna [79]

The answer is 0.2941.

Hope this helps!!

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2 years ago

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Find the value of 5y-11 given that -5y=-45

Vlada [557]

Answer:

Step-by-step explanation:

-5y=-45

y=-45/-5

y=9

then

5y-11=5×9-11

=45-11

=34

6 0

2 years ago

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Find the volume of the triangular prism to the right

tigry1 [53]

Answer:

V = 567 ft³

Step-by-step explanation:

V = Bh

<em>[note: a capital 'B' represents the </em><em>area</em><em> of the base] </em>

<em />

The right triangle is the triangular prism's base.

Because the triangle's height (9 ft) and it's base are the same value (9 ft), we can solve to find the area.

We can identify the base easily because the base and the top of the prism are exactly the same shape

Area of triangular base:

A = $\frac{bh}{2}$

A = $\frac{1}{2}$ (9 ⋅ 9)

A = $\frac{1}{2}$ (81)

A = 40.5

We have 'B' for the triangular prism's formula, so next we need 'h'. 14 ft is provided as the prism's height, so we just need to multiply 40.5 and 14 for our answer.

Volume of triangular prism:

V = Bh

V = (40.5)(14)

V = 567 ft³

3 0

2 years ago