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In a triangle abc angle b is 4 times angle a and angle c is 9 degrees less than 5 times angle a the size of a is?
Wiki User
∙ 13y ago
a = a
b = 4a
c = 5a-9
a+4a+5a-9 = 180
10a = 189
a = 18.9 degrees
Wiki User
∙ 13y ago
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If angle p is a right angle and angle p and q form a linear pair then what angle is q?
Angle q will be less than 90 degrees because a right angle is 90 degrees and the 3 angles in a triangle add up to 180 degrees.
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An equilateral triangle must be acute because each angle is equal to 60 degrees. If all three angles are less than 90 degrees then a triangle is acute.
Is an acute angle an equilateral triangle?
An equilateral triangle has 3 interior equal acute angles each measuring 60 degrees. In general an acute angle is greater than 0 but less than 90 degrees.
Why is it impossible for a triangle to a contain a 180 angle?
The sum of all three angles in a triangle is 180 degrees. If one angle has 180 degrees then there are no degrees left for the other two. If it is a fraction less than 180 degrees then the other could split up the small fraction.
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They are both acute angles because they are less than 90 degrees and the 3rd angle is 71 degrees which is also an acute. The triangle is a scalene triangle.
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A = 18.1 degrees B = 54.3 degrees C = 107.6 degrees
What triangle has one angle that measures 40 degrees one angle that measures 90 degrees and another angle that measures 50 degrees?
A right triangle is a triangle in which one angle is equal to 90 degrees and the remaing two angles are acute(ie., less than 90 degree). so this triangle is a right angle triangle.
What is isosceles triangle degrees?
The two equal angles can be any angle less than 90 degrees, and the third angle can be any angle less than 180 degrees.
How is an acute triangle different from both an obtuse triangle and a right triangle?
An acute triangle has no angle of 90 degrees or more. A right triangle has one angle of 90 degrees; the other two are less than 90 degrees. An obtuse triangle has one angle between 90° and 180°; the other two are less than 90°.
A right angle triangle has one angle of 90?
Yes.The definition of every triangle-Right triangle---A triangle that has one right angle(90 degrees).-Obtuse triangle---A triangle that has one obtuse angle(greater than 90 degrees).-Acute triangle---A triangle that has all acute angles(less than 90 degrees).
What degree angle is an acute triangle?
An acute angle is any angle less than 90 degrees.
What is the meaning of acute angled triangle?
An acute angled triangle means all the angles are less than 90 degrees because an acute angle is an angle less than 90 degrees.
A triangle that has one angle greater than 90 degrees?
this is called an obtuse triangle the triangle that has one angle 90 degrees is called a right traingle a triangle that has 3 angles less than 90 degrees is called an acute triangle
Does An Acute Triangle Have Three 90 Degree Or Less?
The sum of the angles of a triangle is 180 degrees so it cannot have three 90 degrees. An acute angle is an angle less than 90 degrees. An acute triangle is one in which all the angles are acute.
Is a right angle triangle acute or obtuse?
Neither. An acute triangle has all angles less than 90 degrees. An obtuse triangle has one angle more than 90 degrees. A right triangle is simply just a right triangle, since it has one angle of 90 degrees.
How do you classify a triangle with only one angle?
If you only know one angle, that angle is greater than 90 degrees, then the triangle is obtuse If that angles is equal to 90 degrees, then the triangle is a right triangle. If it is less than 90 degrees, you don't know enough information to classify the triangle.
Does a triangle with 20 degrees 30 degrees and 130 degrees an acute triangle?
No. An acute triangle only has angles less than 90 degrees. A triangle with a 130 degree angle is obtuse.
