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scoray [572]
3 years ago
9

What is the surface area

Mathematics
1 answer:
arlik [135]3 years ago
6 0

Answer:

<h2>S.A. = 60 in²</h2>

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

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