The reason behind the statement m∠TRS + m∠TRV = 180° is; Angle Addition Postulate
<h3>How to use angle addition postulate?</h3>
Angle addition postulate states that if D is the interior of ∠ABC, therefore, the sum of the smaller angles equals the sum of the larger angle, which from the attached image is;
m∠ABD + m∠DBC = m∠ABC.
From the attached image, we want to prove that x = 30°.
Now, T is the interior of straight angle ∠VRS.
m∠VRS = 180° (straight line angle)
Thus, from angle addition postulate, we can say that;
m∠TRS + m∠TRV = 180°.
Read more about two column proofs at;brainly.com/question/1788884
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Hey there Nc085601pmzc,
Answer:
Perimeter = Length + Breadth + Length + Breadth
= 50 + 25 + 50 + 25
= 150 cm
Hope this helps :D
<em>~Danielle ♥</em>
5/20=x/28 therefor x equals 7 and since the triangles are similar to each other so y =120
Answer: 60 % - percent of increase
Step-by-step explanation:
Hi, to answer this question we have to analyze the information given:
- <em>Original number of cups: 5
</em>
- <em>New number of cups: 8
</em>
For the first part, because the original number of cups increases, the percent of change is an increase.
To find the number:
(new number -original number ) / (original number) =
Replacing with the values given:
(8-5) /5 = 0.6 (decimal form)
To obtain the percentage we have to multiply it by 100:
0.6 x 100 =60%
In conclusion, we have a 60 percent of increase.
Feel free to ask for more if needed or if you did not understand something.