Find the surface area of th prism.
2 answers:
Answer:A cube with sides 4 m.
Step-by-step explanation:
Surface area of any prism is the sum of area of its faces.
The surface area of any calculated by the formula SA=2(lb+bh+hl)
where l= length ,b= width and h = height of the prism.
Given S= 96 sq m
96=2(lb+bh+hl)
or lb+bh+hl=48
Or b(l+h)+hl=48
Let l=4,b=4,h=4
Then 4(4+4)+4.4=48.
A cube with sides 4 m will have a surface area of 96 square m.
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Answer:
19°
Step-by-step explanation:
I have attached an image showing this elevation.
From the image, let's first find the angle A by using cosine rule.
Thus;
8.1² = 5.5² + 13.1² - 2(5.5 × 13.1)cos A
65.61 = 30.25 + 171.61 - 144.1cos A
144.1cos A = 171.61 + 30.25 - 65.61
144.1cosA = 136.25
cosA = 136.25/144.1
cosA = 0.9455
A = cos^(-1) 0.9455
A = 19°
