Find the total surface area of the prism. 7 ft 8 ft 5 ft 5 ft
1 answer:
Answer:
The total surface area of triangular prism
A = 232 foot²
Step-by-step explanation:
<u><em>Explanation</em></u>:-
Given bases of prism 5 f t , 5 f t , 7 f t
The perimeter of the sum of the bases
P = 7 + 5 +5 = 17 f t
Lateral surface area =perimeter X height
= 1 7 × 8
= 136 f t²
Base area of the triangular prism =
The total surface area of triangular prism
The total surface area of triangular prism
A = 232 foot²
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Option B:
Solution:
In the given figure .
If two triangles are similar, then their corresponding sides and angles are equal.
By CPCTC, in ,
– – – – (1)
– – – – (2)
– – – – (3)
– – – – (4)
– – – – (5)
– – – – (6)
Option A:
By CPCTC proved in equation (2) .
Therefore . Option A is false.
Option B:
By CPCTC proved in equation (1) .
Therefore Option B is true.
Option C:
By CPCTC proved in equation (4) .
Therefore . Option C is false.
Option D:
By CPCTC proved in equation (5) .
Therefore . Option D is false.
Hence Option B is the correct answer.