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evablogger [386]
3 years ago
10

in parallelogram abcd angle b is a right angle determine whether the parallelogram is a rectangle if so by what property​

Mathematics
1 answer:
Digiron [165]3 years ago
8 0

Answer:

If a parallelogram has at least one 90 degree angle then its opposite angle is equal and also = 90 degrees.  

The 2 remaining opposite angles add up to 180 degrees and since they must be equal, they must be 90 degrees each.

So, we have a quadrilateral with four 90 degree angles and is therefore a rectangle OR it could possibly be a square.

Step-by-step explanation:

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The ratio of isabellas money to shanes money is 3:11. If isabella has $33, how much money do Shane and Isabella have together?
solong [7]
The ratio of Isabella’s money to Shane’s money is 3:11

Isabella has $33.   

We can make a proportion to solve for how much money Shane has.   
A proportion is two ratios that are set equal to each other.  

Let’s call Shane’s money ‘S’   

We get this proportion:   3/11 = 33/x   

If we cross multiply we get:   
(33) * (11) = (3) * (x)   

Simplifying it, we get:
363 = (3) * (x)   

Divide both sides by 3, we get:
x = 121   

However, the question asks how much money they have together. 

Isabella + Shane = Total
33 + 121 = $154   

<span>They have $154 together.</span>
4 0
3 years ago
How do i find the area
RideAnS [48]
Multiply the height and base of the triangle, then divide by 2. To find the area of the semi-circle, you must do this formula. 3.14 x Diameter × 1/2

Answer : 96 + 25.12 = 121.12cm
4 0
3 years ago
What is the value of 7 over 3 divided by 5 over 6
rodikova [14]

Answer:

7/3/5/6= 2.8

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Figure CDEF is a parallelogram.
Volgvan

Answer:

n = 10: True

n = 7: False

CF = 59: True

FE = 42: True

CD = 30: False

^.^

- Amanda

7 0
3 years ago
Read 2 more answers
What are the solutions to the equation (2x-5)(3x-1)=0?
lutik1710 [3]
(2x-5)(3x-1)=0

2x-5 = 0      or   3x-1= 0
2x = 5               3x = 1
x = 5/2              x = 1/3

Answer: x=5/2; x=1/3


6 0
3 years ago
Read 2 more answers
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