Answer:
Step-by-step explanation:
Surface area of a triangular prism
Height = 8cm
12cm
10cm
This given as:
S.A = B + Ph
SRT = 20 => STR = 20.
Since STR and STU are supplementary angles, STU = 180 - STR = 180 - 20 = 160, means x = 40.
Answer:
Width of the rectangular banner is
ft.
Step-by-step explanation:
Area of the rectangular banner =
square feet
=
square feet
Area of rectangle is given by,
Area = Length × Width
Length of the banner =
feet
From the formula,

W = 
= 
= 
=
ft
Therefore, width of the rectangular banner is
ft