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Andre45 [30]
3 years ago
15

Questions:

Mathematics
1 answer:
juin [17]3 years ago
6 0

1. The angles form a straight angle

2. A straight angle is defined to be 180 degrees

3. The three angles of any triangle always add to 180, as the diagram shows.

4. This is false. We need to add the three different angles A,B,C to get 180. Adding angle A to itself may not lead to 180. A+A = 180 only happens when angle A is a right angle (90 degree angle).

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Number one. Find the measure of ef. It will be in degrees. Correct answer will get brainliest.
Taya2010 [7]
EF will be the same as HG
4 0
3 years ago
Find the measures of the angles in ∆ABC if m∠A : m∠B : m∠C = 2:3:4.
g100num [7]

Answer:

A=40, B=60, C=80

Step-by-step explanation:

180/7 to find what "1" would be in the ratio then multiply 20*2, 20*3, 20*4.

3 0
3 years ago
Two planes leave an airport at noon. If the eastbound plane flies at 560 mph and the westbound plane flies at 500 mph, at what t
ollegr [7]
The two planes are flying in opposite directions.One plane travels at 560miles per hour and the other travels at a speed of 500 miles per hour. As time proceeds, they would travel further from each other and that can be described by the equation that follows:

560(t)+500(t) =2000, since we are given a 2000 distance limit. Then we are to find the time when they are at this distance. Solve for t, which is equal to 0.53 hours or 32 minutes. 
3 0
3 years ago
-k/5 = 7/5 can someone help with this?​
Elena L [17]

Answer:

k = -7

Step-by-step explanation:

Step 1: Write equation

-k/5 = 7/5

Step 2: Solve for <em>k</em>

  1. Cross multiply: -5k = 35
  2. Divide both sides by -5: k = -7

Step 3: Check

<em>Plug in k to verify it's a solution.</em>

-(-7)/5 = 7/5

7/5 = 7/5

4 0
4 years ago
5 1/2+7 3/4 what is it​
Y_Kistochka [10]

42/6 but if you want to simplify, it's 7

6 0
4 years ago
Read 2 more answers
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