trouvez la surface de la pyramide rectangulaire droite. notez que la figure nest pas à léchelle.\ndraw\nshow…
trouvez la surface de la pyramide rectangulaire droite. notez que la figure nest pas à léchelle.\ndraw\nshow your work here
Answer
Explanation:
Step1: Calculate base area
The base is a rectangle with length 11 and width 8. $\text{Base Area} = 8 \times 11 = 88$
Step2: Calculate area of first pair of faces
These are congruent triangles with base 8 and height 11. $\text{Area of 2 faces} = 2 \times \frac{1}{2} \times 8 \times 11 = 88$
Step3: Calculate area of second pair of faces
These are congruent triangles with base 11 and height 9. $\text{Area of 2 faces} = 2 \times \frac{1}{2} \times 11 \times 9 = 99$
Step4: Sum all areas for total surface area
Add base area and lateral face areas. $\text{Total Surface Area} = 88 + 88 + 99$
Answer:
275