I dont know how to do this I tried so many times and got it wrong please help if you can
2 answers:
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Answer:
Step-by-step explanation:
Given
The length of the rectangular prism is
width of the rectangular prism is
height of the rectangular prism is
The surface area of the rectangular prism is
Put the values
The surface area of the rectangular prism is
Hi there!
Th' following triangle is divided into 2 sub-triangles!
• In 1ˢᵗ triangle :-
tan 45° =
⇒ 1 =
⇒
= 5
• In 2ⁿᵈ triangle :-
cos 30° =
⇒
= 
⇒
= 2 × 5
⇒ = 10
Hence,
Th required answer is 10 units.
~ Hope it helps!
Th' following triangle is divided into 2 sub-triangles!
• In 1ˢᵗ triangle :-
tan 45° =
⇒ 1 =
⇒
• In 2ⁿᵈ triangle :-
cos 30° =
⇒
⇒
⇒
Hence,
Th required answer is 10 units.
~ Hope it helps!
Answer:
length = 6 yards
width = 3.5 yards
Step-by-step explanation:
the length of a rectangle is 1 yard less than twice the width
LEt 'w' be the width of the rectangle
and 'l' be the length of the rectangle
length l = 2 times the width -1
so l = 2w -1
Area of the rectangle = length * width
Area = l * w
we know length is 2w-1 and given area = 21
21 = (2w-1) * w
subtract 21 on both sides
now solve for 'w'
0 = 2w(w+3)-7(w+3)
0= (2w-7)(w+3)
2w-7 = 0 and w+3 =0
w = 7/2 w=-3
width cannot be negative so we ignore w=-3
width w= 3.5
length = 2w-1= 2(3.5) - 1= 7-1=6
length = 6 yards