Question

can you check if my answer is rightmy answer is 1.42 square foota triangular pyramid has a slant height of 0.75 foot. the equilateral triangular base has a perimeter of 1.2 feet and an area of about 0.07 square foot. Find the approximate surface area.

Answer 1

Answer:

0.52 ft²

Explanation:

The surface area of a pyramid can be calculated using the following equation:

$\text{Surface Area = }A\text{ + }\frac{1}{2}\cdot p\cdot s$

Where A is the area of the base, p is the perimeter of the base and s is the slant height.

So, replacing A by 0.07, p by 1.2, and s by 0.75, we get:

$\begin{gathered} \text{Surface Area =}0.07+\frac{1}{2}\cdot1.2\cdot0.75 \\ \text{Surface Area = 0.07 + }\frac{0.9}{2} \\ \text{Surface Area =}0.07\text{ + 0.45} \\ \text{Surface Area =}0.52ft^2 \end{gathered}$

Therefore, the surface area is 0.52 ft²