It is observed that 1 triangle can be found in the 1st figure, 3 triangles in the 2nd figure, 6 triangles in the 3rd figure, and so on. John claims that more than 100 triangles can be found in the 15th figure? Do you agree? Explain your answer.

  1. 0
  2. 0
  3. 13
asked by Max
  1. well, the nth figure has n(n+1)/2 triangles, so check it out.

    1. 0
    2. 0
    posted by Steve

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    How many triangles exist when the measure of angle B is 100 degrees, a =10 and b=5? a. none b. 1 triangle c. 2 triangles I have already solved this and I have found that there will be no triangle because by using the law of sines

    asked by David on December 27, 2015
  2. Geometry

    Let ABC be any triangle. Equilateral triangles BCX, ACY, and BAZ are constructed such that none of these triangles overlaps triangle ABC. a) Draw a triangle ABC and then sketch the remainder of the figure. It will help if

    asked by G on March 20, 2015
  3. Calc 2

    Compute the total area of the (infinitely many) triangles in the Figure In the image, the height of all the triangles is 6/7. The x-values for the bases of the triangles from left to right are as follows: 27/64 , 9/16 , 3/4 , 1

    asked by Manny on March 30, 2018
  4. 4th grade

    Copy and complete the table to represent the pattern in the figures. Write a rule. Figure 1 one triangle Figure 2 3 triangles(in a pyramid shape) Figure 3 6 triangles(in a pyramid shape) Thanks for your help.

    asked by Ian on September 23, 2010
  5. math

    The figure above consists of two equilateral triangles, one of which is inside the other. If the unshaded region within the larger triangle makes up 8/9 of that triangle's area, what is the ratio of the perimeter of the larger

    asked by Sara on August 9, 2012
  6. Math

    I have a triangle with equal sides. Then a s cons triangle is put in the middle so I have four triangles. Triangles are continued to be put instead so I have more and more triangles. As more triangles are added in the same space,

    asked by Sami on February 3, 2016
  7. math

    An equilateral triangle with a base of 20 cm and a height of 17.3 cm is divided into 4 smaller equilateral triangles. What is true about this figure? A. The total perimeter of all 4 triangles is 70 cm. B. The total area of all 4

    asked by mimirocks16 on April 15, 2016
  8. MATH!

    To get from his high school to his home, Jamal travels 5.0 miles east and then 4.0 miles north. When Shelia goes to her home from the same high school she travels 8.0 miles east and 2.0 miles south. What is the measure of the

    asked by megan on May 6, 2007
  9. Math

    1.) What is the conclusion of the following conditional? A number is divisible by 3 if the sum of the digits of the number is divisible by 3. A.) The number is odd. B.)The sum of the digits of the number is divisible by 3 C.) If

    asked by Anonymous on September 4, 2014
  10. Math

    Triangle ABC has coordinates A(-4,-2), B(0,-2), and C(-4,1). Triangle DEF has coordinates D(3,6), E(3,2), and F(0,2). Use coordinate geometry to determine if these two triangles are congruent. If they are not congruent, state the

    asked by Reeces on March 1, 2017

More Similar Questions