Please I need help with the question

Mathematics

2 answers:

liq [111]1 year ago

8 0

Answer:

Step-by-step explanation:

Likurg_2 [28]1 year ago

6 0

Split the figure into three shapes: right triangle no.1, rectangle, and right triangle no.2.

rectangle:
A = l × w
A = 3 × 11
A = 33 cm²

right triangle no.1 (on the left of the rectangle):
find leg 1 first: 17 - 11 = 6
A = ab/2
A = 6 × 3/2
A = 9 cm²

right triangle no.2 (on the right on the rectangle):
A = ab/2
A = 3 × 1/2
A = 1.5 cm²

Add:
33 + 9 + 1.5 = 43.5 cm² (choice b)

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Find the value of x?

jekas [21]

Hello!
The left triangle have two same side length so the two bottom angles are the same which is (180-56)/2=62
See the left triangle bottom right angle and the right triangle bigger angle have the sum of 180 degree so the bigger angle=180-62=118
The right triangle also have two same sides so they also have same angle degree so x=(180-118)/2=31
Have a great day!

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2 years ago

Plz help with this math. Can't find the area of the triangular faces.

Zina [86]

First of all, you have to find the area of both triangles:
$\frac{bh}{2}$
$\frac{4*4}{2}$
Or just 16 because there are 2 of the same triangles.

Now you have to find the area of the 3 rectangles.

The two that are in the front are 4*3 (l*h) or 12*2 (because there are 2 congruent rectangles. The area of those rectangles is 24 square mm.

Now you find the area of the back rectangle:
5.7*3 = 17.1

Finally, you add all the found numbers to figure out the surface area.
17.1 + 16 + 24 = 57.1 square millimeters.

Hope this helped,
Loafly

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3 years ago

Pls help, I really need this answer!!!!

podryga [215]

If you think about it, an octagon is made up of 8 triangles. So you first find the area of one triangle then multiply it by 8 for the total area:
A=1/2bh
A=1/2(9.9)(12)
A=59.4

59.4 x 8= 475.2

Therefore the total area for the octagon should be 475.2 units^2

Hope this helps !

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2 years ago

So the question on the pic

gtnhenbr [62]

Explanation + answers

Because there are lengths going from 0 to 1, the lines must mean either decimals or fractions (we'll use fractions for this.)

1. There are twelve lines from 0 and 1, which we can use as the denominator for our fraction. This means the length of each line is 1/12.

2. In order to find where K's point is at, we simply need to count until we get to it. After counting, I see that K is on point 8/12, which we can simplify to get a smaller number. If we simplify once, we get 4/6, which we can again simplify to get 2/3. This gives us the answer K is on point 8/12 or 2/3.

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2 years ago

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Ymorist [56]

The answer is C. 65........

4 0

3 years ago

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