I answered all of this on the comments of your last question.
It would have been better if a figure come with your question but I will just imagine how the pattern looks like.
Automatically, the area of the two parallelograms is
(14) (10) + (14)(10) = 280 square inches
The are of the three triangles assuming that they are on top of the parallelogram is
3 (1/2) (18 - 10)(7) = 84 sq. inches
The total area is
280 + 84 = 364 sq. inches
Answer:
Step-by-step explanation:
(im presuming this is a triangle)
65 + 45 = 110°
angles in a triangle add up to 180°
180 - 110 = 70°
x = 70°
Step-by-step explanation:
There are ₉C₂ ways to choose 2 students from 9.
There are ₁₅C₂ ways to choose 2 teachers from 15.
There are ₂₄C₄ ways to choose 4 people from 24.
Therefore, the probability is:
P = ₉C₂ ₁₅C₂ / ₂₄C₄
P = 36 × 105 / 10626
P ≈ 0.356