Answer:
Step-by-step explanation:
Connect points I and K, K and M, M and I.
1. Find the area of triangles IJK, KLM and MNI:
2. Note that
3. The area of hexagon IJKLMN is the sum of the area of all triangles:
Another way to solve is to find the area of triangle KIM be Heorn's fomula, where all sides KI, KM and IM can be calculated using cosine theorem.
I believe the answer is C
Bu using Pythagoras theorem
(x^2)+(21)^2=(75)^2
Therefore. 5625-441=(x)^2
X^2=5184
Therefore x=72
Third side length=72 units
Answer:
(x+12)(x+4)
x²+12x+4x+48
x²16x+48
Step-by-step explanation:
your right
(a+b)(c+d)
ac+ad+bc+bd
7y-6=4y+11
Collect like terms
7y-4y=11+6
3y=17
y=17/3