How do i find the missing side of this triangle? any help will be greatly appreciated

as triangle is a right angle triangle .

you can apply trigonometric ratios .

by tan theta = perpendicular / base

tan 55° = 12/x

x = 12/ tan 55°

put the value of tan 55 ° here .

as I don't know the value of tan 55° as it was not present in my syallabus still now .

hope you will get the idea .

hope this will be helpful to you.

$20.01

step-by-step explanation:

the sale price is (1.00 - 0.77)($87), or 0.23($87), or $20.01.

this is not the answer this is just a question. is this middle school math?

step-by-step explanation: