Answered

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5 cm
10 cm
3 cm
4 cm
perimeter of base

Sagot :

sanjaysanjayclassroo

Answer:

First of all, let us have a look at the formula for Total Surface Area of triangular prism:

TSA = B + p\times hTSA=B+p×h

Where B is the area of base

p is the perimeter of base and

h is the height of prism.

here base is a right angled triangle (because 3, 4, 5 is a triplet) Base and Height will be 3 , 4 cm or 4, 3 cm and 5 will be hypotenuse.

So formula for B:

\begin{gathered}B = \dfrac{1}{2}\times Base \times Height\\B = \dfrac{1}{2}\times 3\times 4 = 6 cm^2\end{gathered}

B=

2

1

×Base×Height

B=

2

1

×3×4=6cm

2

So, TSA = 6 + (3+4+5) \times× 10 = 6 + 120 = 126 cm^2cm

2

So, total surface area of given prism is 126cm^2cm

2

.

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