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题库 / Prep2007E1-DS-143
In the figure shown, the measure of angle PRS is how many degrees greater than the measure of angle PQR ?
(1) The measure of angle QPR is 30°
(2) The sum of the measures of angles PQR and PRQ is 150°
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
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PRS = QPR + PQR
所以只要知道QPR的角度即可求处PRS 比PQR 大多少
看清楚指的是什么角
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