Tibby8
Answered

Explore Westonci.ca, the top Q&A platform where your questions are answered by professionals and enthusiasts alike. Join our platform to connect with experts ready to provide precise answers to your questions in different areas. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.

The diagram shows a triangle.
All the measurements are in cm.
The perimeter of the triangle is 70 cm.
The area of the triangle is A cm.
Work out the value of A.
4x + 1
3x - 1
-
Зх

The Diagram Shows A Triangle All The Measurements Are In Cm The Perimeter Of The Triangle Is 70 Cm The Area Of The Triangle Is A Cm Work Out The Value Of A 4x 1 class=

Sagot :

Answer: 210

Explanation:

Recall that the perimeter is the distance around the figure. It's the amount of fencing needed to enclose such a shape.

Add up all three sides and set the sum equal to the perimeter 70. Then solve for x.

side1+side2+side3 = perimeter

(3x)+(3x-1)+(4x+1) = 70

10x = 70

x = 70/10

x = 7

We can then calculate each side

  • horizontal leg = 3x = 3*7 = 21
  • vertical leg = 3x-1 = 3*7-1 = 21-1 = 20
  • hypotenuse = 4x+1 = 4*7+1 = 28+1 = 29

Notice how 21+20+29 = 70 to confirm we have the correct side lengths.

Once we know the horizontal and vertical leg (aka base and height), we can find the area.

Area = 0.5*base*height

Area = 0.5*21*20

Area = 210 square cm

isurujayandi

Step-by-step explanation:

first you have to find x . Then you can add them and equal them with triangle area.

View image isurujayandi
View image isurujayandi
We appreciate your time on our site. Don't hesitate to return whenever you have more questions or need further clarification. We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. Thank you for choosing Westonci.ca as your information source. We look forward to your next visit.