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Allushta [10]
2 years ago
6

What is the surface area of this triangular pyramid the height is 4 the base and width is 4 and the bottom back line is 4 and th

e base height is 3.5 yd.
Mathematics
1 answer:
valentinak56 [21]2 years ago
8 0

Answer:

37 yd²

Step-by-step explanation:

The computation of the surface area of this triangular pyramid is shown below:

The surface area of this triangular pyramid  is

But before that

Lateral area = 3(1 ÷ 2) × base × height

= (3 ÷ 2)(4 yd)(5 yd)

= 30 yd²

Now

base area = 1 ÷ 2 × base × height

= 1 ÷ 2(4 yd)(3.5 yd)

= 7 yd²

Now the total surface area is  

surface area = lateral area + base area

= 30 yd² + 7 yd²

= 37 yd²

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