Answer:
yes , 33^2 + 56^2 = 65^2 and obtuse
Step-by-step explanation:
<h2><u>Question 3</u></h2>
make use of the Pythagoras theorem
which is :
c^2 = a^2 + b^2
where c is the hypotenuse.
now put the values in the equation
65^2 = 56^2 + 33 ^2
the answer is :
<u>yes , 33^2 + 56^2 = 65^2</u>
<u></u>
<h2><u>Question 4</u></h2>
<u />
note if :
c^2 = a^2 + b^2 ----------- right
c^2 < a^2 + b^2------------ acute
c^2 > a^2 + b^2------------- obtuse
hence :
16 + 30 > 38
therefore its : <u>obtuse </u>
Step-by-step explanation:
where
It’s referred to as a country
Answer:
Part 1: V = (x + 2)(x)(3x)
Part 2: V = 3x³ + 6x²
Part 3: A = 2[x(x + 2) + 3x(x + 2) + 3x(x)]
Part 4: A = 14x² + 16x
Step-by-step explanation:
The box has
Width = x,
Length = x + 2
Height = 3x
Part 1:
Volume of the box is given by, V = Length × Width × Height
⇒ V = (x + 2)(x)(3x) ....... (1) (Answer)
Part 2:
Hencem we can write from the equation (1)
V = 3x²(x + 2) = 3x³ + 6x² (Answer)
Part 3:
Totall surface area of the box is given by
sa = 2(wl + hl + hw)
⇒ A = 2[x(x + 2) + 3x(x + 2) + 3x(x)] ........ (2) (Answer)
Part 4:
So, from equation (2) we get,
A = 2[x² + 2x + 3x² + 6x + 3x²]
⇒ A = 14x² + 16x (Answer)
