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3 years ago

12

Find the area of the trapezoid.

1 answer:

marta [7]3 years ago

7 0

Answer:

c

Step-by-step explanation:

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The formula for the area of the triangle is a=1/2bh find the area of the triangle with a base of 9 feet and a height of 16 feet

sleet_krkn [62]

Answer:

The area of the triangle is 72 ft^2.

Step-by-step explanation:

Since A = (1/2)(base)(height),

if base = 9 ft and height = 16 ft, then

A = (1/2)(base)(height) = (1/2)(9 ft)(16 ft) = 72 ft^2.

4 0

3 years ago

9. The ticket at right has a perimeter of 42 cm.

Liula [17]

Perimeter simply represents the sum of all side lengths of a shape. The length of the missing side of the ticket is 5 cm; the length of gold line on each ticket is 20 cm, and 2 bottles of gold ink are required to draw gold lines on 200 tickets.

I've added the image of the ticket as an attachment.

(a) The missing side length

From the attachment, the 4 unknown side lengths are equal. Represent this side length with L.

So, we have:

$Perimeter =2\times 11 + 4 \times L$

This gives

$2\times11 + 4 \times L = 42$

$22 + 4 \times L = 42$

Collect like terms

$4 \times L = 42-22$

$4 \times L = 20$

Divide both sides by 4

$L =5cm$

(b) The length of the gold lines

There are 4 slant lines and the length of one of the slant lines is 5 cm (as calculated above).

So, the length of the gold line is:

$Gold = 4 \times L$

$Gold = 4 \times 5cm$

$Gold = 20cm$

(c) The number of gold ink bottles.

$n = 200$ --- number of tickets

The length of all gold line in the 200 tickets is:

$Length = 200 \times Gold$

$Length = 200 \times 20cm$

$Length = 4000 cm$

$Length = 4000 \times 0.01m$ ---- convert to meters

$Length = 40m$

Given that:

$Bottle = 20m$ --- 1 bottle for 20 m

The number of bottles (n) is:

$n = \frac{Length}{Bottles}$

$n = \frac{40m}{20m}$

$n = 2$

Hence, 2 bottles of gold ink are enough.

Read more about perimeters at:

brainly.com/question/6465134

4 0

3 years ago

The length of a rectangle is 10 feet more than the width. if the perimeter of the rectangle is 180 feet, find the length and the

Paha777 [63]

The length would be 50 ft and the width would be 40 ft.

6 0

3 years ago

A table shaped like a solid cube needs to painted. All six faces of the table must be painted. The edge length of the table is 1

Nataly_w [17]

7.2

1.2 x 6 = 7.2

hope this helps!

8 0

3 years ago

One fluid ounce equals blank cups in fraction form

Anastasy [175]

Answer:cap

Step-by-step explanation:

3 0

3 years ago