Answer:
Step-by-step explanation:
we have a rectangle that measure 21 inches by 16 inches
to find the rectangle(which is the hypotenuse) we will use Pythagorean theorem
c^=a^2+b^2
c^=21^2+16^2=697
c= =26.40 which rounded to the nearest tenth =26
14.85
The area of a triangle is given by
A = 1/2 bh where b is the base and h is the height
A =1/2 ( 6.6)(4.5)
A = 14.85
0.7999989281
x1 = cos^-1 (3/5)
x1= 53.13°
sin(53.13) = 0.7999989281
Step-by-step explanation: 0.16
X=26
