QUESTION IMAGE
Question
what is the value of $p$?
(there is a triangle $uvt$ with $u$ at the top, $v$ at the bottom left, $t$ at the bottom right. the angle at $u$ is $36^circ$. the sides $uv$ and $ut$ have one red tick mark each, indicating they are equal in length.)
Step1: Identify triangle type
The triangle \( UVT \) has two equal sides (marked with red ticks), so it's isosceles. Thus, \( \angle V = \angle T \) or \( \angle U \) is the vertex angle. Wait, no—wait, the equal sides are \( UV \) and \( UT \)? Wait, no, the marks: one on \( UV \), one on \( UT \)? Wait, no, looking at the diagram: the two sides with ticks are \( UV \) and \( UT \)? Wait, no, actually, the sides \( UV \) and \( UT \) have ticks? Wait, no, the triangle has vertices \( U \), \( V \), \( T \). The sides with ticks: one on \( UV \), one on \( UT \)? Wait, no, maybe \( UV = UT \)? Wait, no, the base would be \( VT \), and the equal sides are \( UV \) and \( UT \). Wait, no, actually, the two sides with red marks are \( UV \) and \( UT \)? Wait, no, maybe \( UV = UT \), so triangle \( UVT \) is isosceles with \( UV = UT \). Wait, no, the angle at \( U \) is \( 36^\circ \). Wait, no—wait, in an isosceles triangle, the angles opposite equal sides are equal. Wait, the two sides with ticks: let's see, the sides \( UV \) and \( UT \) have ticks? Wait, no, the diagram: \( U \) is the top, \( V \) and \( T \) are the base. The sides \( UV \) and \( UT \) have ticks? Wait, no, maybe \( UV = UT \), so angles at \( V \) and \( T \) are equal? Wait, no, wait, the angle at \( U \) is \( 36^\circ \). Wait, no, let's correct: the triangle has two sides equal: \( UV = UT \)? Wait, no, the marks: one on \( UV \), one on \( UT \)? Wait, no, maybe \( UV = VT \)? Wait, no, the diagram shows two sides with red ticks: one on \( UV \), one on \( UT \). Wait, no, perhaps \( UV = UT \), so triangle \( UVT \) is isosceles with \( UV = UT \), so angles at \( V \) and \( T \) are equal. Wait, no, the angle at \( U \) is \( 36^\circ \). Wait, the sum of angles in a triangle is \( 180^\circ \). So if \( UV = UT \), then \( \angle V = \angle T \). Wait, no, wait, maybe the equal sides are \( UV \) and \( VT \)? No, the ticks are on \( UV \) and \( UT \). Wait, let's re-express: in triangle \( UVT \), sides \( UV \) and \( UT \) are equal (marked by ticks), so it's isosceles with \( UV = UT \). Therefore, the base angles are \( \angle V \) and \( \angle T \), which are equal. Wait, no, wait: the angle at \( U \) is \( 36^\circ \), so the other two angles (\( \angle V \) and \( \angle T \)) sum to \( 180 - 36 = 144^\circ \), and since they are equal (because \( UV = UT \)), each is \( 144 / 2 = 72^\circ \). Wait, but the angle at \( V \) is \( p \). So \( p = 72^\circ \)? Wait, no, wait—wait, maybe I got the equal sides wrong. Wait, the two sides with ticks: maybe \( UV = VT \)? No, the ticks are on \( UV \) and \( UT \). Wait, let's check again. The triangle has vertices \( U \), \( V \), \( T \). The sides \( UV \) and \( UT \) have red ticks, so \( UV = UT \). Therefore, the angles opposite those sides: angle opposite \( UV \) is \( \angle T \), angle opposite \( UT \) is \( \angle V \). Wait, no: side \( UV \) is opposite angle \( T \), side \( UT \) is opposite angle \( V \). So if \( UV = UT \), then \( \angle T = \angle V \). The angle at \( U \) is \( 36^\circ \). So sum of angles: \( 36 + \angle V + \angle T = 180 \). Since \( \angle V = \angle T \), let \( \angle V = \angle T = x \). Then \( 36 + 2x = 180 \). Solve for \( x \): \( 2x = 180 - 36 = 144 \), so \( x = 72 \). Therefore, \( p = 72^\circ \).
Step2: Calculate angle \( p \)
Sum of angles in a triangle: \( 180^\circ \).
Given \( \angle U = 36^\circ \), and \( \triangle UVT \) is isosceles with \( UV = UT \), so \( \angle V = \angle T \).
Let \( \angle V = \angle T = p \).
Then:
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\( 72^\circ \)