Question

What is the surface area

Answer 1

Answer:

S.A. = 60 in²

Step-by-step explanation:

We have 4 congruent triangles.

The formula of an area of a triangle:

$A_\triangle=\dfrac{1}{2}bh$

b - base

h - height

We have b = 5in and h = 6in. Substitute:

$A_\triangle=\dfrac{1}{2}(5)(6)=(5)(3)=15\ in^2$

The Surface Area of the triangular pyramid:

$S.A.=4\cdot15\ in^2=60\ in^2$