All sides of an equilateral triangle are equal, so all three sides are 9 cm.
To find h, use the pythagorean theorem. This requires use of only one right triangle, where we use b as our h.
a^2+b^2=c^2
(4.5)^2+b^2=(9)^2
(20.25)+b^2=(81)
b^2=(81/20.25) or 4
square root both sides
b=2
Answer: 119
Step-by-step explanation: base * height / 2
14*17/2=119. can i get Brainliest please
The student does not make an error
Answer:
3x - 7y = 9
Step-by-step explanation:
3x - 9 = 7y
Add 9 to both sides.
3x = 7y + 9
Now subtract 7y from both sides.
3x - 7y = 9 (answer).