Sin 5 × tan 10× sec 15 ×sin 30× sin 75 × tan 80 × sec 85 + sec(70+a)-cosec(20-a) plz answer

Will give are given that xy is parallel to zw. if xz is a transversal that intercepts xy and zw, angle angle alternate interior angles. since xy is parallel to zw, we know that these angles are we also know that angle xvy and angle zvw are , and thus congruent. we can conclude that △xyv ~ △zwv using the similarity theorem.

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?