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Hunter-Best [27]
3 years ago
11

The sum of the angle measures of any triangle is 180 degrees. Find the angle measures of a triangle if the second angle measures

twice the first, and the third angle measures 15 degrees less than the second
Mathematics
1 answer:
emmasim [6.3K]3 years ago
7 0
//I'll say that the first angle = x

180 = x + 2x + (2x - 15)
180 = 5x - 15
195 = 5x
x = 39

So the first angle is 39 degrees, the second angle is 78 degrees and the third angle is 63 degrees.
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Rani has a stamp collection which consists of Indian stamps and foreign stamps. The ratio of
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8 0
4 years ago
AB and CD are straight line segments.
frutty [35]

Answer:

<h2>i) Angle AOC is 95° </h2>

Reason:- Angle AOC is equal to Angle DOB since they are Vertically Opposite Angles.

<h2>ii) Angle BOC is 85°</h2>

Reason:- Angle AOC + Angle BOC - 180° (they lie in a straight line so they are a linear pair. Sum of the angles will be 180°)

Angle AOC is 95°, So:-

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Angle BOC= 180° - 95°

<h3><u>Angle BOC = 85°</u></h3>

<u></u>

<h2>iii) Angle DOE is 17°</h2>

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So,

68° + Angle DOE+ 95° = 180°

163° + Angle DOE = 180°

Angle DOE= 180° - 163°

<h3><u>Angle DOE is 17°</u></h3>
5 0
3 years ago
Identify the number of terms in the following algebraic expression. 3x + 2y - 5
Irina18 [472]

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Step-by-step explanation:

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Read 2 more answers
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