Will give brainleist for correct answer
Find the perimeter of the triangle using the dimensions shown given below. (a = 49.42 yards; c = 81 yards)

I'm glad you asked!

Step-by-step explanation:

Keep in mind first that b is the same size as c.

49.42 + 81 + 81 = 211.42

Now add 49.42 because we need the height.

We get 260.84.

Hello qualityguard, please ask for correction next time

basically, complete the squaer

for y=ax²+bx+c
a is the quadratic coefient
b=linear coefient

steps
1. group x terms

2. factor our quadratic coefient

3. take 1/2 of the linear coefient and square it

4. add negative and positive of it insides parentahes

5. factor perfect squaer trinomial

6. expand

so

y=-4x²+2x-7

first step is group x terms
y=(-4x²+2x)-7
hmm, not listed

next step is to factor -4 from -4x²+2x
y=-4(x²+0.5x)-7
yep

answer is to factor -4 from -4x²+2x