i just want to verify whether i did them right or not
1. In the figure below, AR and PB are the altitudes of triangle PQR. Prove the product of AO and OR equals the product of PO and OB
圖片參考:http://imgcld.yimg.com/8/n/HA00008075/o/701001210100513873384230.jpg
2. In the figure below, OF=2FC. Find the value of x
圖片參考:http://imgcld.yimg.com/8/n/HA00008075/o/701001210100513873384231.jpg
thank you very much!!!