Answer:
64 + 64sqrt(3)
174.9 cm²
Step-by-step explanation:
AD/2 = 8cos(60) = 4
AD = 8 cm
Height of each triangle = 8sin(60)
= 4sqrt(3)
sqrt: square root
Area = 8² + 4(½ × 8 × 4sqrt(3))
= 64 + 64sqrt(3) cm²
= 174.8512517 cm²
I don’t understand your this question
7 2/9 - 5 5/7 = 1 32/63
or
7.222222222 - 5.714285714 = 1.507936508
Hope this helps!
<em>~ ShadowXReaper069</em>
the answer is the first option