Step-by-step explanation:
Not entirely sure, but I believe something like this:
∠1 + ∠2 = 180° since they are a linear pair;
Since ∠1 = ∠2, we can say:
∠1 + ∠1 = 180°
2(∠1) = 180°
∠1 = 90°
And since:
∠1 = ∠2
∠2 = 90°
So the angle between t and s is 90°;
An angle of 90° means t and s are perpendicular (⊥)
Basically, the denominator will always be the number outside of the radical and the numerator will always be your exponent. If it’s one, you don’t put it in because if there is no exponent, it’s an invisible one
Answer:
x= 40°
Step-by-step explanation:
Please see attached picture for full solution.
Key concepts:
- Corresponding angles are equal to each other
- The sum of the angles in a triangle add up to 180°
Answer:
b = 16.5
Step-by-step explanation:
Given
=
( cross- multiply )
9b = 148.5 ( divide both sides by 9 )
b = 16.5
Answer:
<h2>510.4 ft²</h2>
Step-by-step explanation:
We have:
two trapezoids with bases 15ft and 7ft and height 5ft.
four rectangles 5ft × 11ft, 15ft × 11ft, 9.4ft × 11ft and 7ft × 11ft.
The formula of an area of a trapezoid:

b₁, b₂ - bases
h - height
Substitute:

The formula of an area of a rectangle:

l - length
w - width
The dimensions of rectangle l × w
Subtitute:

The surface area of the figure:
[tex]S.A.=2A_t+A_1+A_2+A_3+A_4\\\\S.A.=2(55)+55+165+103.4+77=510.4\ ft^2[/text]