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3 years ago

What is the area of a trapezoid with height 5m and bases 8m and 1m.

2 answers:

8 0

Area of a trapezoid:
A = 1/2 * ( b 1 + b 2) *h
b 1 = 8 m, b 2 = 1 m, h = 5 m;
A = 1/2*( 8 + 1 ) * 5 = 1/2 * 45 = 22.5
Answer: B ) 22.5 m²

Leokris [45]3 years ago

3 0

Answer:

B 22.5m^2

Step-by-step explanation:

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Select the THREE equations that this diagram could represent.

Vladimir [108]

Question

Select the three equations that this diagram could represent.

Answer

Well, we first have to find out what the diagram says.

So what the diagram says is that 18 + 18 + 18 = 54.

Given this information, we have to figure what other answers = 54.

Therefore the answers are

(A) 18 * 3 = 54.

(D) 54/18 = 3

(E) 54/3 =18

6 0

2 years ago

A triangular pyramid has a base shaped like an equilateral triangle. The legs of the equilateral triangle are all 20 inches long

Pie

Answer:

Surface area of pyramid with base equilateral triangle is $390+100\sqrt{3}$ square inches

Step-by-step explanation:

Recall the following result:

The total surface area(S) of a regular pyramid is given by,

$S = \frac{1}{2}pl+B$ ...... (1)

Here, p represents the perimeter of the base , $l$ the slant height and B the base area of the pyramid.

From the given information:

Side of equilateral triangle = 20 inches

Slant height of the pyramid( $l$ ) = 13 inches.

First find the perimeter and Area of the base pyramid.

Perimeter of equilateral triangle(p) = $3 \times (side)$

= $3 \times 20 = 60 inches$

Area of equilateral triangle(B) = $\frac{\sqrt{3} }{4} \times (side)^{2}$

= $\frac{\sqrt{3} }{4} \times (20)^2 = 100\sqrt{3}$ square inches.

Substitute the above values in equation (1) as shown below:

$S=\frac{1}{2} \times 60 \times 13+100\sqrt{3}$

$S= 390+100\sqrt{3}$ square inches

Hence, the surface area of pyramid with base equilateral triangle is $390+100\sqrt{3}$ square inches.

6 0

2 years ago

Please help!!! I don’t know which one to choose which one do u choose

bixtya [17]

Answer:

A h+p ≤15

50h+500p ≥ 2500

Step-by-step explanation:

h = headphone and

p = pianos

We can only ship a maximum of 15 total

h+p ≤15

We must sell at least 2500 dollars of product. Headphones are 50 and pianos are 500

50h+500p ≥ 2500

3 0

2 years ago

Simplify the expression. (4 − 4i)(−2 + 5i)

swat32

12 + 28i
is your answer

6 0

3 years ago

Read 2 more answers

Some help would be great, also giving brainliest.

Harrizon [31]

The area of the shaded region would be 64m²

8 0

2 years ago