A road sign consists of a triangle, with a base of 10 feet, sitting directly atop a rectangle, which has a width of 10 feet. The triangle's height is 4 feet, and the rectangle's height is 8 feet. What is the total area of the sign, in square feet?
Select the correct answer below:
32
a
60
80
100
120

Step-by-step explanation:

Given

Triangle

Rectangle

Required

Determine the area of the sign

First, we calculate the area of the triangle (A1)

Next, we calculate the area of the rectangle (A2)

The area of the sign is then calculated as:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

27 + 13x + 15 = (x + 5)( =

step-by-step explanation:

27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( =