Calculate the missing area
1 answer:
Answer:
The missing area is 28 square inches
Step-by-step explanation:
see the attached figure with letters to better understand the problem
we know that
The area of triangle is given by the formula
In this problem
In each side of the square there are two triangles with the same area, because they have the same base and the same height
so
Group terms
----> equation A
we have that
----> equation B see the picture
substitute equation B in equation A
therefore
The missing area is 28 square inches
You might be interested in
Answer:
The probability that either Alex or Bryan get an A is 0.9
Step-by-step explanation:
Before we proceed to answer, we shall be making some important notation;
Let A = event of Alex getting an A
Let B = event of Bryan getting an A
From the question, P(A) = 0.9, P(B) = 0.8 and P(A ∩ ) = 0.1
We are to calculate the probability that either Alex or Bryan get an A which can be represented as P(A ∪ B)
We can use the addition theorem here;
P(A ∪ B) = P(A) + P(B) - P(A ∩ B) .......................(i)
Also,
P(A) = P(A ∩ ) + P(A ∩ B) .........................(ii)
We can insert ii into i and we have;
P(A ∪ B) = P(A ∩ ) + P(A ∩ B) + P(B) - P(A ∩ B) = P(A ∩
) + P(B) = 0.1 + 0.8 = 0.9