Answer:
Exact form:4/15
decimal form: 0.26(6 is repeating)
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
A = 1/4 * (pi) * d^2
A = 1/4 * (pi) * 8^2
A = 1/4 * (pi) * 64
A = 1/4(64) * (pi)
A = 64/4 * (pi)
A = 16 (pi) in^2
First you do -5+12 which = 7
Then you add the X and square it
To make 7x^2
angle x= 77° because base angles on an isosceles triangle are the same.
hope that helped^^