Question

triangles online practice
complete this assessment to review what youve learned. it will not count toward your grade.
can a triangle with sides 7, 10, and 12 be a right triangle? how do you know? (1 point)
there is no way to tell without an angle measure.
yes, because it looks like a right triangle.
no, because 149 does not equal 144.
no, because 193 does not equal 100.
check answer remaining attempts: 3

Explanation:

Step1: Apply Pythagorean theorem

For a right - triangle, \(a^{2}+b^{2}=c^{2}\), where \(c\) is the longest side. Here \(a = 7\), \(b = 10\), \(c=12\). Calculate \(a^{2}+b^{2}\) and \(c^{2}\).
\(a^{2}+b^{2}=7^{2}+10^{2}=49 + 100=149\)
\(c^{2}=12^{2}=144\)

Answer:

No, because 149 does not equal 144.