[問題]GWD 4 - Q8

[gimmy03]

GWD 4 -Q8

Please refer to the attachment.
For the cube shown above, what is the degree measure of PQR?

A. 30
B. 45
C. 60
D. 75
E. 90

Ans: C

Please kindly help! 3 Q

To the 版主, FYI. ... the GWD 討論區中的歷史資料有誤 GWD 4 -Q8 是天山的題目. Thank you.

[micki]

我的想法如下:

連接PR 兩點, 會發現 PR,RQ,PQ 是三角形PQR的三邊

而 PR,RQ,PQ 又是 這個正方體的各面對角線....
所以 PR=RQ=PQ 所以 PQR 是60度 ....

[gimmy03]

太利嗨了!!

[ritata]

[quote="gimmy03"]GWD 4 -Q8

Please refer to the attachment.
For the cube shown above, what is the degree measure of PQR?

A. 30
B. 45
C. 60
D. 75
E. 90

Ans: C

請問題目中說是個cube 中文為立方體
是正方體的意思嗎?