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klasskru [66]
3 years ago
7

Find the value of x on a triangle

Mathematics
2 answers:
Fantom [35]3 years ago
5 0

Answer:

x = 25

Step-by-step explanation:

The sum of the angles of a triangle is 180 degrees.

90 + x+ 2x+15 =180

Combine like terms

105+3x = 180

Subtract 105 from each side

105+3x-105 = 180-105

3x =75

Divide each side by 3

3x/3 = 75/3

x = 25

jarptica [38.1K]3 years ago
3 0

Answer:

25°

Step-by-step explanation:

<h3>2x + 15° + x + 90 °= 180° ( being sum of angles of triangle)</h3><h3>3x + 105° = 180 °</h3><h3>3x = 180 °- 105°</h3><h3>3x = 75°</h3><h3> x = 25°</h3><h3 /><h3>hope it helps :)</h3>
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