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oksano4ka [1.4K]
3 years ago
13

Cameron makes a quilt design using four congruent triangles as shown below. 4 connecting congruent triangles are shown. The bott

om 2 triangles share the same base. The top 2 triangles also share the same base and sit on top of the bottom 2 triangles. The base length is 21 centimeters. The length of the bottom side of the triangle is 14 centimeters. The length of the right side of the triangle is 9 centimeters. What is the perimeter of the entire design?
Mathematics
2 answers:
Pie3 years ago
6 0

Answer:

64

Step-by-step explanation:

right go ahead

9966 [12]3 years ago
5 0

Answer:

its 64cm

Step-by-step explanation:

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Which are the side lengths of a right triangle? Check all that apply.
S_A_V [24]

Answer:

3, 14, and sqrt205.

2,9, and sqrt85.

Step-by-step explanation:

Check if they fit the Pythagoras theorem c^2 = a^2 + b^2:

3^2 = 9 , 14^2 = 196.

9 + 196  = 205  which is the square of sqrt205.

So this is a right angled triangle.

6^2 + 11^2 = 36 + 121

= 157 Not right-angled.

19^2 + 180^2  = 32761  Not right-angled.

3^2 + 19^2 = 370    Not right-angled.

2^2 + 9^2 = 85, So this is right angled..

7 1
3 years ago
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L'arc pour enfant
atroni [7]

Answer:

don't understand

Step-by-step explanation:

4 0
3 years ago
F(x)=x^4-9x^2+20<br><br> Step by step please
aleksandr82 [10.1K]
I think this is the steps your looking for.

3 0
3 years ago
The perimeter of a rectangle is 72 m. The width of the rectangle is 16 m. What is the area of the rectangle
Aneli [31]

Answer:

area=320m²

Step-by-step explanation:

perimeter=2(l+w)

72=2(l+16)

72/2=l+16

36=l+16

36-16=l

l=20m

area=l*w

 =20*16

 =320m²

7 0
3 years ago
Write the equation that the phrase represents, then solve the equation. The difference of a number and 1 2/7 is 5 1/2 ( with exp
BaLLatris [955]

Answer:

n = 95/14, or 6 11/14

Step-by-step explanation:

Let the number be n.  Then:

n - 1 2/7 = 5 1/2.

Multiplying each term by the LCD (which is 14), we get:

14n - 18 = 77

Then 14n = 95  

and so the desired result is n = 95/14, or 6 11/14

8 0
4 years ago
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