5272道题目5525 条题源记录 · 相同内容已合并
直线・角与多边形进阶
In the figure, line p is parallel to line r, and line t intersects both lines. What is the value of x?
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直线・角与多边形挑战
In the figure shown, line k intersects lines r and s. If \( w=147 \), which additional piece of information is sufficient to prove that lines r and s are parallel?
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直线・角与多边形进阶
In the figure shown, lines l and k are parallel and line t intersects both lines. If \( x>134 \), which of the following must be true?
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直线・角与多边形挑战
In triangle \( JKL \), the measures of \( ∠K \) and \( ∠L \) are each 51. What is the measure of \( ∠J \) , in degrees? (Disregard the degree symbol when entering your answer.)
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直线・角与多边形进阶
In \( \triangle JKL \), the measures of both \( ∠J \) and \( ∠K \) are equal and the measure of \( ∠L \) is \( 138^{∘} \) . What is the measure of \( ∠J \) ?
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直线・角与多边形进阶
In triangle ABC, the measure of angle A is \( 56^{∘} \), the measure of angle B is \( 90^{∘} \), and the measure of angle C is \( (\frac{k}{2})^{∘} \). What is the value of k?
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直线・角与多边形挑战
In triangle ABC, the measure of angle A is \( 49^{∘} \) , the measure of angle B is \( 90^{∘} \), and the measure of angle C is \( (\frac{k}{2})^{∘} \). What is the value of k?
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直线・角与多边形进阶
In \( \triangle ABC \) , the sum of the measures of \( ∠A \) and \( ∠B \) is 159.5°. What is the measure of \( ∠C \)?
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直线・角与多边形基础
In the figure shown, d, e, and f are constants and the value of k is 2. If the measure of angles D, E, and F are 42°, x°, and (2x + 12)°, respectively, what is the measure, in degrees, of angle S?
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直线・角与多边形进阶
In the figure, line j is parallel to line k. What is the value of x?
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直线・角与多边形进阶
For isosceles triangle \( ABC \), \( AB=BC=56 \), the measure of angle \( ABC \) is \( 36^{∘} \), point \( D \) lies on \( BC \), and \( ∠BAC \) is bisected by \( AD \). Which of the following statements must be true?
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直线・角与多边形挑战
In the figure, line \( AB \) is parallel to line \( CD \), and line \( AD \) intersects line \( BC \) at point \( E \). If \( y=118 \) and \( z=116 \), what is the value of x?
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