Answer:
Step-by-step explanation:
suface area of base=1/2×9×7.8=9×3.9=35.1 yd²
lateral surface area=3×1/2×9×10=135 yd²
total surface area=135+35.1=170.1 yd²
i assumed it is an equilateral triangular base.
as √(7.8²+4.5²)=9.0049≈9
10 and -4 can add up to give 6 and multiply to give -40
Answer:
the answer is .. 2x-10
Step-by-step explanation:
hope this helps!!
Answer:
40
Step-by-step explanation:
5= 1/8 of structure so 5*8= 8/8 of the structure= 40
