Question

What is the surface area in square millimeters of the triangular pyramid?

Answer 1

Answer:

• 31 mm² is the surface area.

Step-by-step explanation:

We know that:

• Surface area of triangle = 3(1/2 x 4 x 4) + (1/2 x 4 x 3.5)

Work:

• 3(1/2 x 4 x 4) + (1/2 x 4 x 3.5) mm²
• => 3(2 x 4) + (2 x 3.5) mm²
• => 24 + 7 mm²
• => 31 mm²

Hence, 31 mm² is the surface area.

Hoped this helped.

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