Name the quadrant in which tanθ and secθ are positive.

ANSWER

Quadrant I

EXPLANATION

In the first quadrant all the trigonometric ratios are positive.

This implies that,both tanθ and secθ are positive in the first quadrant.

No two trigonometric ratios are positive in any other quadrant apart from the first quadrant.

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.