Find the value of x.
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2007-01-10 01:56:03 · 17 answers · asked by Rattiesrule 2 in Science & Mathematics ➔ Mathematics
true or false?
A triangle with sides of lengths 24, 70 and 74 is a right triangle
i think i know but im just double checking
2007-01-10 02:04:00 · update #1
okay so 130* and it's adjacent angle are supplementary angles so they have to add up to 180*. therefore your missing angle is 50*. so all your angles inside the triangle have to add up to 180* so 180-50-70= 60 so x+60
2007-01-10 02:03:35 · answer #1 · answered by AngerPancake 4 · 2⤊ 0⤋
To figure out the first missing angle in the triangle you would subtract the 130° on the other side from 180 because a line is always 180°.
180° - 130° = 50°
So now you have 50° and 70°.
Being that a triangle is also always equal to 180° you can subtract the first given degree and the other degree that was just figured out by 180°.
180° - 50° - 70° = 60
60° = x°
2007-01-10 10:14:56 · answer #2 · answered by Jillian Iris 2 · 0⤊ 0⤋
The answer is 60 degrees
The explanation goes like this the exterior angle is 130 degrees the the interior Angle would be 180-130=50 degrees.
in a triangle sum of all the angles is 180 degrees so 70+50+x=180
so x=180-120
= 60 degrees
2007-01-10 10:03:23 · answer #3 · answered by Ramanadhan C 2 · 0⤊ 0⤋
60. Because a straight line is 180. Subtract 130 from it to find the interior angle of the triangle. 180 - 130 = 50. There are 180 degrees in a triangle. So 180 - (50 + 70). 50 + 70 = 120. 180 - 120 = 60.
2007-01-10 10:02:32 · answer #4 · answered by orangesunday09 1 · 0⤊ 0⤋
The missing angle is 50 degrees because 180 - 130 is 50. Since a triangle has 180 degrees total x is 60 because 180 - 50 -70 = 60.
2007-01-10 10:02:27 · answer #5 · answered by ItalianStallion 2 · 0⤊ 0⤋
The Angle of x is 60.
The angle next to the 130 degrees is 50 degrees because of the supplementary rule.
A triangle is 180 degrees altogether, so 180 - 70 - 50 = 60 degrees.
hence
2007-01-10 10:01:51 · answer #6 · answered by Donny Dutch 4 · 0⤊ 0⤋
There are two supplementary angles
one angle has 130° and the other has x, 70 and the missing angle.
Supplementary angles = 180°
The angle next to the 130° is
180 - 130 = 50
The missing angle is 50°
Solving for x
x + 70 + 50 = 180
x + 120 = 180
x + 120 - 120 = 180 - 120
x = 60
The answer is x = 60°
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2007-01-10 10:12:49 · answer #7 · answered by SAMUEL D 7 · 0⤊ 0⤋
The lower left angle of the triangle is:
180 - 130 = 50
The sum of the angles of the triangle is 180 too so:
x = 180-50-70 = 60
So x = 60
2007-01-10 10:01:20 · answer #8 · answered by anton3s 3 · 0⤊ 0⤋
The sum of the opposite interior angles= exterior angle
70 +x=130
x=60
The sum of interior angles in a triangle is 180
the third angle =180-130=50
therefore
50+70+x=180
x=60
2007-01-10 10:05:04 · answer #9 · answered by Maths Rocks 4 · 0⤊ 0⤋
x = 60
The external angle is given as 130. So the internal angle is 50.
The total of angles of a triangle is 180. So x = 60
2007-01-10 10:03:19 · answer #10 · answered by cheyuta 2 · 0⤊ 0⤋