Step-by-step explanation:
if you're looking for x
x=180-42-51= 87°
and if you're looking for D
D= 180-42= 138°
The length is 10
The width is 4
4 + 6 = 10
4 x 10 = 40
Answer:
The degree measure of the four add up to 360 degrees. This is actually true of any quadrilateral. Let lower case letter a,b,c and d represent the angle of trapezoid ABCD. Then a+b+c+d= 360 degreees.
Answer:
a
Step-by-step explanation:
9(5x)=45x
9(2)=18
4(8)=32
4(-x)=-4x
45x-4x=41x
32+18=50
41x+50