P=2l×2w
130=2l×2(l-9)
130=2l×2l-18
148=4l
37=l
w=l-9
w=37-9
w=28
The width is 28
Answer:
x =53.1
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
tan theta = opp side/ adjacent side
tan x = 28 /21
Take the inverse tan of each side
tan ^-1 (tan x) = tan ^-1 (28/21)
x = 53.13010235
Rounding to the nearest tenth
x =53.1
