Mathematics
Grade10
Easy
Question
Find the value of n if the given triangle is an equilateral triangle.
![](data:image/png;base64,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)
- 45
![4 over 7](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABIAAAAjCAYAAACZ6FpfAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAXQ/cXWQAAAKFJREFUeNpjYCAO+ADxfwYKAQ8QX6OGQTOBOJlSg6yBeC+UTbZBbEB8CYjlKTWoA4hzkPhkGaQHxEfRxMgy6CQQq1DDoP8EMEWAYgMGr0GjgIrgP5l4FAyVGKQYhALxbEoNEQfiw0DMQalBm4DYgFJDMoC4llJD5KGVAQulBh0EYkdqxNI2Sg1hAuIb1AjgAKi3KAbLgTiRGga9BGJBYhUDAMCDOnQ5rPIUAAAAYnRFWHRNYXRoTUwAPG1hdGggeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzE5OTgvTWF0aC9NYXRoTUwiPjxtZnJhYz48bW4+NDwvbW4+PG1uPjc8L21uPjwvbWZyYWM+PC9tYXRoPoxlbx0AAAAASUVORK5CYII=)
- 12
![6 over 11](data:image/png;base64,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)
The correct answer is: ![4 over 7](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABIAAAAjCAYAAACZ6FpfAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAXQ/cXWQAAAKFJREFUeNpjYCAO+ADxfwYKAQ8QX6OGQTOBOJlSg6yBeC+UTbZBbEB8CYjlKTWoA4hzkPhkGaQHxEfRxMgy6CQQq1DDoP8EMEWAYgMGr0GjgIrgP5l4FAyVGKQYhALxbEoNEQfiw0DMQalBm4DYgFJDMoC4llJD5KGVAQulBh0EYkdqxNI2Sg1hAuIb1AjgAKi3KAbLgTiRGga9BGJBYhUDAMCDOnQ5rPIUAAAAYnRFWHRNYXRoTUwAPG1hdGggeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzE5OTgvTWF0aC9NYXRoTUwiPjxtZnJhYz48bW4+NDwvbW4+PG1uPjc8L21uPjwvbWZyYWM+PC9tYXRoPoxlbx0AAAAASUVORK5CYII=)
To find the value of n in the given equilateral triangle.
The sides of an equilateral triangle are equal.
3 - 5n = 2n - 1
7n = 4
n = ![4 over 7](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABIAAAAjCAYAAACZ6FpfAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAXQ/cXWQAAAKFJREFUeNpjYCAO+ADxfwYKAQ8QX6OGQTOBOJlSg6yBeC+UTbZBbEB8CYjlKTWoA4hzkPhkGaQHxEfRxMgy6CQQq1DDoP8EMEWAYgMGr0GjgIrgP5l4FAyVGKQYhALxbEoNEQfiw0DMQalBm4DYgFJDMoC4llJD5KGVAQulBh0EYkdqxNI2Sg1hAuIb1AjgAKi3KAbLgTiRGga9BGJBYhUDAMCDOnQ5rPIUAAAAYnRFWHRNYXRoTUwAPG1hdGggeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzE5OTgvTWF0aC9NYXRoTUwiPjxtZnJhYz48bW4+NDwvbW4+PG1uPjc8L21uPjwvbWZyYWM+PC9tYXRoPoxlbx0AAAAASUVORK5CYII=)
Therefore, using the property of equilateral triangle, the value of n is .