Find the area of the equilateral triangle whose sides are 4 yd.

The first one. 4 times square root of 3.

Step-by-step explanation:

The side of the equilateral triangle that represents the height of the triangle will have a length of because it will be opposite the 60o angle. To calculate the area of the triangle, multiply the base (one side of the equilateral triangle) and the height (the perpendicular bisector) and divide by two.

Remember:

Triangle area=

h of equilateral triangle =

Step-by-step explanation:

b=4yd

a=4yd

h =

h =

4/2=2

h=

area=

area=

2/2=1

Finally

area=

$450.00 for 6 weeks

or

$300

step-by-step explanation:

$200.00 for first week $50.00 x5 equals $250 plus $200 equals $450.00 for six weeks.

$200 for first week

$200 x 0.10 = $20

$20 x 5 = $100

$200 + $100 = $300

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation: