The surface area of the triangular prism is .

The correct answer is: 576

Step-by-step explanation:

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576 metres squared

Step-by-step explanation:

Side 1:

Area = bh

       = (8)(6)

        = 24 metres squared

Side 2:

Area = 22 x 6 = 132 metres squared

Side 3:

Area = 22 x 8 = 176 metres squared

Side 4:

Area = 10 x 22 = 220 metres squared

so

Surface Area = (2 x 24) + 132 + 176 + 220

                      = 48 + 528

                      = 576 metres squared

b. 24 mm

step-by-step explanation:

use the pythagorean theorem.

a^2 + b^2 = c^2

a^2 + 7^2 = 25^2

a^2 + 49 = 625

a^2 = 576

a = 24

answer: b. 24 mm