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22 votes
Work out the value of x
2x + 13
x-4
x+7
(Look at the photo attached)

Work out the value of x 2x + 13 x-4 x+7 (Look at the photo attached)-example-1

2 Answers

1 vote

Answer:

x = 41

Explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 given angles and equate to 180

2x + 13 + x - 4 + x + 7 = 180, that is

4x + 16 = 180 ( subtract 16 from both sides )

4x = 164 ( divide both sides by 4 )

x = 41

User Nicolas Caous
by
7.7k points
7 votes

Answer:

x=41

Explanation:

we know that all the angles need to add up to 180

The angle on top is almost a right angle(90) but is not exactly

playing with the numbers will help

95-13=82/2=41

lets continue with this and see if it works out

41+7=48

41-4=37

48+95+37=180

hope this helps!

User Kirstine
by
8.6k points

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