Question

Find the surface area of this triangular prism.
Length: 5cm, Base: 12 cm, Height: 8 cm, Sloping edges: 10 cm

Answer 1

Answer:

265.0892cm

Step-by-step explanation:

a Base side

5am

b Base side

12cm

c Base side

10cm

h Height

8cm

Using the formulas

A=2AB+(a+b+c)h

AB=s(s﹣a)(s﹣b)(s﹣c)

s=a+b+c

2

Solving forA

A=ah+bh+ch+1

2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=5·8+12·8+10·8+1

2·﹣54+2·(5·12)2+2·(5·10)2﹣124+2·(12·10)2﹣104≈265.0892

Answer 2

Answer:

265.0892

Step-by-step explanation:

math.