5272道题目5525 条题源记录 · 相同内容已合并
三角函数・单位圆与弧度进阶
Triangle ABC is similar to triangle DEF, where angle A corresponds to angle D and angle C and F are right angles. The length of AB is 2.4 times the length of DE. If tanA= \( \frac{21}{20} \) , what is the value of sinD ?
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三角函数・单位圆与弧度进阶
In the triangle shown, what is the value of sin y "?
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三角函数・单位圆与弧度进阶
Right triangle ABC is shown. What is the value of tan A?
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三角函数・单位圆与弧度进阶
Which expression represents the length of line segment AB?
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三角函数・单位圆与弧度挑战
In the right triangle shown, what is the value of sin x°?
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三角函数・单位圆与弧度进阶
The measure of angle C is \( \frac{3π}{4} \) radians. What is the value of sin(C)?
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三角函数・单位圆与弧度进阶
In the triangle shown, \( RS=\sqrt{155} \). What is the value of sin \( R \)?
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三角函数・单位圆与弧度进阶
The difference between the measure of angle A and the measure of angle B is \( −\frac{3}{4}π \) radians. Which expression shows the difference between the measure of angle A and the measure of angle B, in degrees?
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三角函数・单位圆与弧度进阶
In △ ABC , ∠ B is a right angle and the length of \( BC \) is 236 millimeters. If \( cosA=\frac{3}{5} \), what is the length, in millimeters, of \( AB \) ?
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三角函数・单位圆与弧度进阶
The measure of angle Z is 75°. What is the measure, in radians , of angle Z ?
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三角函数・单位圆与弧度进阶
In triangle ABC, the measure of angle C is 90° degrees. The cosine of angle A is \( \frac{231}{281} \).What is the sine of angle B ?
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三角函数・单位圆与弧度挑战
In right triangle RST, the sum of the measures of angle R and angle S is 90 degrees. The valne of sin(R) is \( \frac{2\sqrt{10}}{7} \). What is the value of cos(S) ?
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