Question

What is the surface area of the rectangular pyramid shown? 59.5 cm2 63 cm2 75.5 cm2 99 cm2

Answer 1

Answer:

Option D.

Step-by-step explanation:

In this question figure of pyramid is attached below the question .

Surface area of the rectangular pyramid :

Area of the Base = Length × Width

                            = 10 × 2 = 20 cm²

Area of Lateral #1 = $\frac{1}{2}(P)(L)$

                             = $\frac{1}{2}(10\times6.3)$

                             = 31.5 cm²

Area of Lateral #2 = $\frac{1}{2}(8\times 2)$

                               = $\frac{16}{2}$

                               = 8 cm²

Surface area of the pyramid = 20 + 2(31.5) + 2(8)

                                                = 20 + 63 + 16

                                                = 99 cm²

Surface area of the pyramid is 99 cm²

Answer 2

Answer:

D

Step-by-step explanation:

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