Question

What is the area of the triangle in this coordinate plane? 17.5 units² 21.0 units² 35.5 units² 49.0 units² A graph with a triangle drawn on it. One point of the triangle touches the y axis

Answer 1

I took the test its 49.0

Answer 2

Given:

Here a graph of right angle triangle is given, which one vertices is on y- axis.

To Find:

What is area of triangle?

Solution:

From graph it is clear that base of right angle triangle is parallel to X- axis and altitude of right angle triangle is parallel to Y- axis. So:

Base of right angle triangle(B) = 7 units

Altitude of right angle triangle (H) = 14 units

We know the formula of area of right angle triangle is :

$\mathbf{Area\ of\ triangle = \dfrac{1}{2}\times Base\times Altitude}$

$\mathbf{Area\ of\ triangle = \dfrac{1}{2}\times 7\times 14}$

$\mathbf{Area\ of\ triangle = 7\times 7= 49 \ units^{2}}$

So area of triangle is 49 units². Means fourth option is correct.