1. squaring
2. four triangles and the square with side length "c"
3. big square (side length: a+b)
If 45 + 47 = t, then t = 45 + 47.....correct
if 45 + 47 < t , then t = 45 + 47....incorrect
45 + 47 < t
92 < t .....this is saying that t is greater then 92
t = 45 + 47
t = 92...this is saying t is equal to 92 (not greater)
Answer:
The answer is 98
Step-by-step explanation:
Subtract the sum of the two angles from 180 degrees.
The sum of all the angles of a triangle always equals 180 degrees. Write down the difference you found when subtracting the sum of the two angles from 180 degrees. This is the value of X.
62+20=82
180-82=98
98+20+62=180
Answer:
B. -40°F
Step-by-step explanation:
its- clearly lower than -30
A pyramid is regular if its base is a regular polygon, that is a polygon with equal sides and angle measures.
(and the lateral edges of the pyramid are also equal to each other)
Thus a regular rectangular pyramid is a regular pyramid with a square base, of side length say
x.
The lateral faces are equilateral triangles of side length
x.
The lateral surface area is 72 cm^2, thus the area of one face is 72/4=36/2=18 cm^2.
now we need to find
x. Consider the picture attached, showing one lateral face of the pyramid.
by the Pythagorean theorem:

thus,

thus:

(cm^2)
but

is exactly the base area, since the base is a square of sidelength =
x cm.
So, the total surface area = base area + lateral area =

cm^2
Answer:

cm^2