Mathematics: How would i do this surface area problem? picture is included

-3 + 1/4aStep-by-step explanation:...

How would i do this surface area problem? picture

Bamaboy8804

22.01.2022

SA=210cm^2

Step-by-step explanation:

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1. Find area of triangle.

$A=\frac{1}{2} bh$

$A=\frac{1}{2}(6)(9.9)$

$A=\frac{1}{2}(59.4)$

A=29.7

2. Identify how many triangles are there.

There are 5 triangles.

3. Find area of total triangles.

A=29.7(5)

A=148.5

4. Find area of pentagon.

$A=5(\frac{1}{2}bh)$

$A=5[\frac{1}{2}(6)(4.1)]$

$A=5[\frac{1}{2}(24.6)]$

A=5(12.3)

A=61.5

5. Add area of total triangles and area of pentagon.

SA=148.5+61.5

SA=210

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