4.
3. Construct the altitude of APQR from P
to QR
Using a compass and protractor

the perimeter is increased by a factor of 2

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

there are no answer choices

step-by-step explanation:

y-y1=m(x-x1)

y-1=1(x-8)